According to the latest data, the number of elderly people over 60 years old in China has exceeded 200 million, accounting for 14.9% of the total population. With the surge in the number of elderly people. As people enter old age, their physiological functions, including immune function and metabolic function, tend to decay, and they are prone to various external and internal diseases. Chinese medicine plays an important role in the health care and disease treatment of the elderly. Due to the physiopathology and complexity of the elderly, the principles and characteristics of the use of Chinese medicine according to the individual are more important and worthy of attention. In addition to the basic principles of diagnosis and treatment, Chinese medicine for the elderly should also take into account the special characteristics of old age and frailty, and require comprehensive analysis and appropriate treatment in terms of drug selection and dosage. With the modern development of Chinese medicine technology, the rational use of Chinese medicine has attracted more and more attention. Chinese medicine is highly accepted and commonly used among the elderly, and its rational application is directly related to the health of the elderly, which deserves attention and attention. I. Physiological changes of the elderly and the use of medicines As they grow older, their physical functions gradually decline and their functions become impaired. As the “Yellow Emperor’s Classic of Internal Medicine? Ling Shu? The day of the year”, “fifty years old, the liver began to decline, the liver leaves began to thin, the bile began to reduce, the eyes began to unknown; sixty years old, the heart began to decline, if worry and grief, blood slack, so good sleep. Seventy years old, spleen qi deficiency, skin withering. At the age of eighty, the lung Qi is deficient, the body is away, so the words are good mistakes. Ninety years old, the kidney qi scorched, the four viscera meridians empty. Hundred years old, the five organs are deficient, the spirit are gone, the body alone and end. 1, fifty years old, the liver begins to decline, nourish the liver blood and liver Qi. At the age of fifty, the human body development from the prime into the aging, the first impact and liver, resulting in the decay of liver energy, liver lobe began to weaken, bile gradually reduced, the eyes for the liver’s orifice, so the eyesight also began to fade. The liver in TCM originates from anatomy but is more than anatomy. It is a “isomorphism” composed of anatomy, physiopathological observation, logical reasoning, philosophical thought penetration and other factors, but the study of the anatomical liver can also partially reflect the situation of the liver in TCM. The liver develops from the endoderm, and the embryonic liver is mainly a hematopoietic organ, which is converted to a metabolic organ after birth and is involved in the metabolism of many substances in the body. The liver also has detoxification, immune and coagulation functions, and when liver dysfunction occurs, the entire organism is affected. Studies have shown that as we age, liver hepatic perfusion decreases. The gradual decrease in the volume of the liver, the gradual decrease in the total number of hepatocytes, compensatory hypertrophy of hepatocytes, increased frequency of nuclear and chromosomal abnormalities in hepatocytes, increased volume and number of cytosolic lysosomes, and the formation of vacuoles in the nucleus of hepatocytes make the hepatocytes in the elderly liver gradually less able to cope with various losses and may contribute to the increased incidence of liver diseases in the elderly. In addition, the liver’s ability to regenerate and its ability to respond to stimuli gradually decreases. Therefore, it is important to pay attention to the regimen of the liver from the age of fifty and to include in the treatment medicines that nourish the liver blood and dredge the liver qi, thus delaying the aging of this organ and improving the body’s resistance. For example, in the case of accurate identification of the treatment can be properly considered to add some liver blood nourishing drugs, while the damage to the liver drugs such as Huang Yao Zi, He Shou Wu, Neem, Senna, Wu Bei Zi, Qian Li Guang, Chai Hu, Cang Er Zi, Lei Gong Vine, vitiligo capsules, Hua Tuo Zai Zai Wan, Da Wu Luo Dan, etc. should be avoided or reduced dosage as much as possible. 2, sixty years old, the heart Qi began to decline, nourish the heart blood to replenish the heart Qi. The heart is the main blood vessels, the heart is insufficient blood vessels astringent less, the limbs do not get enough nutrients, so tired and sleepy. The heart is the power plant of the human circulatory system, maintaining the normal metabolism and function of the body’s cells. As we age, the heart continues to age. Studies have shown that as we age, the number of cardiomyocytes decreases, their size increases, their nuclei become larger and irregular, and their lipofuscin increases and is deposited. Lipofuscin is a depleting particle that can cause brown atrophy of the heart and may affect cardiac function in some older adults. After the age of 60, cardiac amyloidosis is more common. Large amounts of amyloid deposition are associated with the development of congestive heart failure and atrial fibrillation. In older adults over 60 years of age, the ratio of septal to left ventricular free wall thickness exceeds 1.3. Septal hypertrophy in older adults may be the cause of nonfamilial hypertrophic cardiomyopathy in some older adults. Coronary artery calcification detected on fluoroscopy is now considered to have lost its predictive value for the diagnosis of coronary atherosclerosis in older adults over 65 years of age. Therefore, starting at the age of sixty, while paying attention to liver protection, heart conditioning should also be strengthened. Adding some heart blood and heart qi nourishing drugs to the treatment will play an important role in delaying their aging and improving the quality of life, such as adding some heart nourishing drugs appropriately under the premise of accurate identification, while drugs with adverse effects on the heart such as ephedra, licorice, angelica, Chinese medicinal preparations containing toadstool, Chuanwu, Cao Wu, Radix et Rhizoma, etc. should be considered Substitute or reduce the amount of use, remember not to overdose. 3. Seventy years old, spleen qi deficiency, strengthening the spleen and stomach to nourish the middle energy. At the age of seventy, the spleen and stomach are weakened because of the decay of heart qi and the failure of heart fire to produce spleen and earth. In 1988, Meites suggested that the immune-neuroendocrine network plays an important role in the aging process. plays an important role in the aging process. Other studies have shown that the aging of the immune system is closely related to the aging of the body [8]. The spleen plays an important role in the human immune system and has the function of filtering blood to remove aging or dead components that appear in the blood during aging [9], but as we age, the spleen begins to atrophy, its S-phase cells are reduced, splenic function is weakened, and lipid metabolism is abnormal. This inevitably affects immune function and accelerates aging. It is evident that the spleen plays an important role in delaying the aging process, and it becomes crucial to protect the function of the spleen and stomach and delay its aging. Therefore, at the age of seventy, it is more important to pay attention to the conditioning agent of the spleen and stomach, and try not to use or reduce the use of harsh or bitter-cold medicines such as emetic and laxative. Under the premise of accurate identification, some astragalus, dang ginseng, jujube, atractylodes, etc. can be added appropriately to preserve the qi of the spleen and stomach, in addition to taking the tonic pill to replenish the middle qi. 4, eighty years old, lung qi failure, replenish lung qi. At the age of eighty; as the spleen qi is weakened, the spleen earth does not produce lung gold, so the lung qi decays with the lung, the lung is the main reservoir of prana, prana is the instinctive action and feeling of the human body, the human ability to speak is part of prana, so the performance of prana also begins to be discrete and weak, and makes frequent mistakes in speech. Most of the functions of the lung in TCM come from the TCM interpretation of the anatomical structure and location of the lung by taking analogies. The lung has great similarities with Western medicine in terms of the main qi and the division of respiration; the TCM statement that the lung is directed toward the hundred veins has the same source but different meaning from the cardiopulmonary circulation of Western medicine; the TCM lung regulates the water channel, is the source of water, and is cognate with the large intestine; the functions of the main skin and hair, and the opening of the nose are physiological functions of clinical pathological counter-evidence, which are not found in Western medicine, but modern research can make them communicate with each other to some extent. The lung consists of alveoli, fine bronchi at all levels, abundant capillaries, and nerves, which develop from the endoderm (alveoli, fine bronchi at all levels), mesoderm (abundant capillaries), and ectoderm (nerves), respectively. Modern studies have shown that as we age, the lungs begin to age, and their most important manifestation is lung atrophy. In addition, alveolar type II cells atrophy and decrease, alveolar walls become thinner, the number of alveoli decreases, capillary beds are missing in large numbers, respiratory muscles age and weaken, and the reserve part of pulmonary ventilation function is damaged. Therefore, at the age of eighty, more attention should be paid to nourishing lung qi and regulating lung qi. Under the premise of accurate identification, more medication should be considered from the pathogenic aspects of the lung meridian, which may receive unexpected results. 5, ninety years old, kidney qi scorching, four organs meridians empty; ninety years old, due to the weakness of the lung qi, gold does not produce water, so the kidney qi failure, above the heart, liver, spleen, lung, the four organs are weak, so the kidney qi scorching. Since kidney qi is the root of human activities, both the material basis for maintaining life activities and the prime mover of life activities, the whole body meridians are deficient in qi and blood. Yang Haifa and others used modern scientific and technological means and methods to study the theory of Chinese medicine. It is believed that the “kidney” in Chinese medicine and the “kidney” in Western medicine are basically the same in terms of anatomical location, and most of the functions of the “kidney” in Chinese medicine are compatible with the functions of the kidney in modern medicine, so modern Studies on the kidney in Western medicine can also reflect the function of the kidney or aging in Chinese medicine to a certain extent. Nowadays, studies show that as we age, the weight of the kidney begins to decrease, the volume shrinks, the renal plasma flow (RPF) begins to decrease, the glomerulus also begins to sclerosis, and about 25% of the glomeruli in elderly people over 80 years old are completely sclerotic, the number and volume of the renal tubules also gradually decrease, the interstitial volume of the tubules increases significantly and interstitial fibrosis gradually becomes obvious, and occasional inflammatory cell infiltration is seen. Therefore, at the age of ninety, while taking care of the internal organs, extra attention should be paid to the conditioning of the kidneys, and the use of herbal medicines with renal toxicity should not be used or reduced as much as possible, in order to slow down the aging of the kidneys. 1. Respiratory diseases Commonly seen are colds, chronic bronchitis and pulmonary heart disease. Older people have relatively low resistance and weakened adaptability to changes in the four seasons, plus factors such as life and living are prone to external influences. Although the elderly people have colds and flu, although the evil is real, it is always about the deficiency of the righteousness, so the clinical method is mostly used to support the righteousness and dispel the evil, and the basic principle is to support the righteousness without hurting the righteousness. Therefore, the general pungent warmth to relieve the surface of the hemp Gui to be used with caution, wind-cold colds more with Su Ye, onion, tempeh, etc. to replace it, and wind-heat colds bitter cold products such as Huang Lian, gardenia, etc. should also try to reduce the amount or less with the. The selection of proprietary Chinese medicine should also be selected on the basis of evidence, and should not be used casually so as not to delay the disease. The Chinese medicine treatment of chronic bronchitis should be based on the acute phase, extension, remission period and different selection of drugs, the acute phase to treat the symptoms of the main, chronic extension of the symptoms of both, clinical remission period to support the main, especially the elderly, pay more attention to support the main, the lung, spleen and kidney three organs, improve immunity, to avoid recurring attacks, to gas deficiency of the main available six Junzi Tang, tonic in Yiqi pill; kidney Yin deficiency of the main For kidney yin deficiency, Liu Wei Di Huang Wan and Zuo Gui Wan are available. In the elderly, the cough and asthma, phlegm, chest pain, blue lips, purple and dull tongue or blue veins under the tongue, or scattered petechiae on the tongue, sunken and astringent pulse, etc., are signs of prolonged illness such as luo, often due to the evidence of deficiency of blood and evil, so it is advisable to add products to invigorate blood and resolve blood stasis on the basis of tonic deficiency, such as peach kernel, safflower, danshen, Chuanxiong, red peony, angelica, aromatic herb, zuo gui wan, etc. The most common cause of pulmonary heart disease is chronic bronchial disease. It is important to avoid recurrent attacks. The treatment during the remission period is generally based on tonifying the deficiency, especially the lungs and kidneys, such as Jin Kui Ren Qi Wan for deficiency, Zhi Bai Di Huang Wan for heat, and Gui Lu Ren Ren Wan for deficiency of both yin and yang. The use of astragalus and roasted licorice to nourish the qi, and the use of he shou wu and rehmannia to nourish the blood. 2, cardio-cerebral vascular disease common hypertension, coronary heart disease, transient ischemic attack, cerebrovascular accident, senile dementia, etc.. Hypertension is common in the elderly, mostly due to deficiency and deficiency in the upper and lower part of the body, more real at the beginning, more deficiency in the long run. The first stage of hypertension is dominated by the Yang of the heart and liver, commonly used in chrysanthemum, Xia Ku Cao, asparagus, hooked vine, scutellaria, stone cassia, etc.; the second stage of hypertension is dominated by the Yin deficiency of the liver and kidney, commonly used in white peony, cow’s knee, cistanches, raw earth, wolfberry, dogwood, etc.; hypertensive crisis is mostly due to the internal movement of liver wind, commonly used in tortoise board, dragon bone, oyster, Xuan Shen, asparagus, etc.; the third stage of hypertension is mostly seen in the Yin and Yang deficiency, commonly used in ginseng, Epimedium, astragalus, cinnamon, and The third stage of hypertension is often seen in the deficiency of both yin and yang. It is worth noting that although hypertension is most common due to yin deficiency and yang hyperactivity, clinical symptoms of qi deficiency are often present, so the method of nourishing yin and submerging yang should not be applied, but mainly to benefit qi and promote clearing, which can often improve symptoms and lower blood pressure. Coronary heart disease is mostly caused by qi stagnation, blood stasis, phlegm and cold clotting factors, and finally causes paralysis of the heart veins. Heart and spleen deficiency is mostly seen in invisible coronary artery disease or atypical angina pectoris, commonly used in Radix Codonopsis, Astragalus, Allium, Cinnamomum, Jujube, Guaou, etc.; Qi stagnation and blood stasis is mostly seen in certain angina pectoris or myocardial infarction, commonly used in Danshen, Chuanxiong, Panax notoginseng, Puhuang, Peach kernel, Safflower, etc.; Yin deficiency and Yang hyperactivity are mostly seen in coronary artery disease complicated by hypertension, commonly used in Shengdi, Medlar, Ligustrum, Danpi, Hooked vine, etc.; Heart and kidney deficiency is mostly seen in coronary artery disease complicated by Heart and kidney deficiency is often seen in coronary heart disease complicated by heart failure, commonly used in Radix Codonopsis, Gui Zhi, Roasted Licorice, Radix et Rhizoma, Allium sativum, etc.; Heart and Yang deficiency is often seen in myocardial infarction combined with shock, commonly used in Radix et Rhizoma, Ginseng, Ginger, Oyster, Wu Wei Zi, etc. Cerebrovascular accidents include cerebral thrombosis, cerebral embolism, cerebral hemorrhage, subarachnoid hemorrhage and hypertensive encephalopathy, which are a group of diseases that seriously endanger the health of the elderly. It belongs to the scope of “stroke” in Chinese medicine. It can be divided into acute stage and sequelae stage. In the acute stage, there are different symptoms of yang closure, yin closure and syncope, while in the sequelae stage, there are more symptoms of yin deficiency, yang hyperactivity and qi and blood stasis. In the post-acute stage, the symptoms of Yin deficiency and Yang hyperactivity and Qi, blood and blood stasis are more common. For Alzheimer’s disease, use products that strengthen the spleen and dispel dampness, nourish the liver and kidney, nourish the brain and benefit the marrow, resolve phlegm and nourish the heart, and benefit the qi and blood, such as pig spinal cord, pig brain, astragalus, poria, panax ginseng, lily of the valley, wheat, jujube, cypress kernel, lotus seed heart, forsythia heart, bamboo lee, light bamboo leaf, longan meat, walnut meat, mulberry, etc. 3, digestive system diseases common chronic gastritis, peptic ulcer, ulcerative colitis, irritable bowel syndrome, constipation, etc.. Chronic gastritis is commonly superficial and atrophic gastritis, the elderly are prone to chronic atrophic gastritis. Peptic ulcers are more common in the elderly as painless ulcers, which are prone to combined bleeding and transformation into gastric cancer. The chronic atrophic gastritis often has symptoms of gastric yin deficiency, mostly gastric acid deficiency, can also be used to nourish yin and benefit the stomach, acid sweetening yin method. The old age ulcer disease belongs to the spleen and stomach weakness and deficiency of cold, but also a lot of Qi and Yin deficiency, treatment should be Qi and Yin balance. The old people have more stasis, and the old people have more qi deficiency, so benefitting the qi and invigorating the blood is also a common method. In addition to the identification of drugs, according to the clinical situation of gastric disease, the following drugs can be used in the formula to improve the efficacy. (1) Acute inflammation of gastric mucosa, with the addition of forsythia, silver flower, dandelion, wild chrysanthemum, white flowered snake-tongue grass, septoria, etc., and the addition of asparagus, maidenhair, dendrobium, Zhi Mu, ground bones, etc. for deficiency-heat, and the addition of raw earth, tannin, red peony, salvia, etc. to cool the blood and remove blood stasis. ②Gastric glandular intestinal epithelial metaplasia and heterotypic hyperplasia, add Semen nigrum, Rhizoma alba, Fritillaria, Salvia, Boswellia, Myrrh, Curcuma, Gecko, etc. ③ Excessive gastric acid: clam shell powder, squid bone, corrugated seed, red stone resin, pearl powder. ④Lack of gastric acid: malt and henbane have the effect of promoting gastric juice secretion. Or add warm stomach method, such as galangal and cinnamon branch for deficiency of acid in deficiency cold evidence. Or use the method of souring and sweetening Yin, such as Wu Mei, Bai Shao, Licorice, Hawthorn, etc. Or the sweet-cold method of generating fluid, such as raw earth, maitong, yu zhu, dendrobium, are applicable to acid deficiency of gastric yin deficiency. In the acute stage of ulcerative colitis, it is advisable to clear damp-heat, and in the remission stage, it is advisable to strengthen the spleen and tonify the kidney. In recent years, the treatment of blood circulation and blood stasis, qi circulation and stagnation has been widely used in the treatment of this disease. Based on the identification of the evidence, the clinical efficacy has been significantly improved by adding Curcuma longa, Rhubarb, Dangpi, Peach kernel, Safflower, Tian Qi, Yan Hu Suo, Niubizi and Si Wu Tang. Irritable bowel syndrome is the most common clinical disorder of the gastrointestinal tract, and is a type of psychosomatic disease with a special pathophysiological basis. The appearance or aggravation of symptoms is related to psychological factors or mental stimulation, and some patients still have different degrees of psycho-psychiatric abnormalities, especially in the elderly. This disease belongs to the evidence of deficiency of the origin and the symptoms of the symptoms. The symptoms of the origin are Qi stagnation, cold-dampness and damp-heat, while the deficiency of the origin is spleen deficiency and kidney deficiency. Patients with diarrhea, the first diarrhea should not be abruptly used to supplement astringent, long diarrhea should not be diffused to cast a share of profit; heat should not be used too much bitter cold to avoid bitter cold injury to the spleen; supplement deficiency should not be used purely dry sweet warm, because sweet can be full of dampness. Constipation is one of the common symptoms of the elderly, divided into real and virtual constipation, respectively, with the method of clearing heat and moistening the intestines, smooth qi and move stagnation, benefit qi and moisten the intestines, nourish blood and moisten dryness, warm yang and relax the bowels. Elderly constipation to deficiency-based, should not be used to attack the products, even if the actual evidence, should be in the disease that stop, and then with the benefit of the spleen, kidneys, blood, and the production of fluid and moisten the intestines of the drug treatment. Some people long-term use of drugs containing rhubarb, senna is not desirable, long-term use leads to immune function, should be discontinued and comprehensive treatment. 4, metabolic diseases Common diabetes, hyperlipidemia, gout, hyperviscosity, etc.. The incidence of diabetes increases with age, with a peak above the age of 60. The treatment of diabetes is mainly focused on controlling blood sugar and relieving symptoms. The disease is based on yin deficiency and dry heat as the symptoms, so the treatment should be based on nourishing the kidneys, nourishing yin and benefiting qi, and it is advisable to nourish yin and yang after a long period of illness. Yin deficiency and dry heat, or deficiency of both qi and yin, can often lead to blood stasis, so adding Panax ginseng, peach kernel, Salvia miltiorrhiza, Radix Paeoniae Alba and Andrographis paniculata in the formula to invigorate blood circulation and resolve blood stasis can enhance the therapeutic effect. Based on the identification of evidence, herbs with hypoglycemic effect, such as ginseng, atractylodes, dioscorea, genistein, wolfberry and yam, are added to the formula. Hyperlipidemia is based on the deficiency of spleen and kidney, and phlegm and blood stasis are the symptoms. The treatment is based on the principles of nourishing Yin and tonifying kidney, strengthening spleen and dampness, clearing phlegm and removing blood stasis. Commonly used lipid-lowering herbs include ginseng, ganoderma lucidum, he shou wu, chasteberry, hawthorn, wolfberry, cassia seed, garlic, zedoary, panax ginseng, pu huang, turmeric, cordyceps, artemisia sinensis, angelica, safflower, lotus leaf, seaweed, huang lian, rhubarb, bitter ginseng, silver flower, bonesetter, tiger stick, etc. Geriatric gout disease has the characteristics of positive deficiency and evil reality, but most of them are liver and kidney yin deficiency, turtle and turtle are blood and flesh sentient products, which have good liver and kidney tonic effect and are worth choosing. Hyperviscosity is a comprehensive concept of pathophysiology, as a link in the disease process, mostly related to hyperlipidemia, hypertension, atherosclerosis, cardiovascular disease, peripheral vascular disease, etc. Hyperviscosity mostly belongs to blood stasis evidence, and treatment is based on the combination of blood activating and stasis removing prescriptions with drugs that move qi, tonify qi, warm yang, disperse cold, dissolve phlegm, and open ligaments. Clinically, the commonly used drugs to invigorate blood circulation and eliminate blood stasis include Salvia miltiorrhiza, Angelica sinensis, Mudanpi, Radix Paeoniae, Rhizoma Gastrodiae, Rhizoma Ligustici, Rhizoma Ligustici, Rhizoma Pusillarum, Rhizoma Safflower, Rhizoma Liu, Rhizoma Gastrodiae, Radix Panax notoginseng, Rhizoma Rheum, Rhizoma Zeleniae, Rhizoma Sumac, Radix etiolatum, Radix etiolatum, Radix etiolatum, Radix etiolatum, Radix etiolatum, etc. 5, osteoarthrosis common osteoporosis, shoulder periarthritis, proliferative osteoarthrosis, etc.. The treatment of osteoporosis in the elderly is mostly caused by kidney deficiency, so the main treatment is to nourish the kidney and benefit the marrow, and the spleen and kidney are both nourished, and kidney deficiency should be distinguished from kidney yin deficiency and kidney yang deficiency, so the selection of prescriptions and medicines should be biased, or yin and yang should be nourished together. Commonly used are Eucommia, Boneset, Tortoise Plate, Soft-shelled turtle nail, Deer horn gum, Chinese wolfberry, Chinese yam, Baji Tian and Lock Yang. In the acute stage of periarthritis of the shoulder joint, pain is present, and the actual evidence of wind, cold, dampness, stasis and phlegm is predominant, and the treatment is based on eliminating evil and relieving pain. Proliferative osteoarthropathy is a degenerative disease, the root cause of this disease is liver and kidney deficiency, the acute phase is based on “pain is not passable” disease mechanism, the treatment is mainly to unblock the meridians, relieve pain, commonly used to dispel wind and damp dispersing cold and pain relief drugs and blood circulation products. In the remission period, the main treatment is to cultivate the vital energy and consolidate the root, and to nourish the liver and kidney, using Hu Qian Wan and He Che Dazao Wan. 6, tumor diseases Commonly there are primary bronchial lung cancer, stomach cancer, esophageal cancer, primary liver cancer, colorectal cancer, breast cancer, uterine cancer, etc. At present, the application of traditional Chinese medicine for the treatment of the above-mentioned elderly tumors is mainly to play its role of reducing toxicity and increasing effectiveness with radiotherapy. In addition to attacking the evil, radiotherapy often causes damage to the body’s vital energy, and in serious cases, the patient cannot even persist in the treatment. The main side effects of radiotherapy in Chinese medicine are as follows: ① Digestive disorders: most of the patients have gastric distension, loss of appetite, nausea, dry vomiting or vomiting, abdominal distension, abdominal pain, diarrhea, etc. after 1-2 days of chemotherapy, which are identified by Chinese medicine as internal invasion of evil toxins and damage to spleen and stomach. The main treatment is to strengthen the spleen and stomach. If the patient has poor appetite, stomach fullness and distension, and prefers hot drinks, the patient is suffering from spleen and stomach deficiency and coldness, so he should take Xiang Sha Liu Jun Zi Tang plus or minus; if the patient has dysfunctional liver and stomach with dysfunctional pain and prefers cold drinks, he should use Yi Yao San plus or minus. For nausea and vomiting, vomiting acidic water is mostly stomach heat, take Orange Peel and Bamboo Roo Soup; vomiting clear water is stomach cold, use Ding Xiang and Persimmon Tip Soup; diarrhea is mostly evidence of spleen deficiency, use Ginseng and Bai Zhu San plus or minus. ② Weakness of the body: after 1-2 weeks of chemotherapy, there is often general fatigue, weakness of the limbs, mental discomfort, panic, shortness of breath, insomnia, sweating, dry mouth, dry tongue and hair loss, etc., such as radiation therapy process due to excessive heat toxicity caused by the loss of qi and blood, can be used to cleanse the qi and blood, can be used raw astragalus, sage, American ginseng, raw earth, Dan Shen, etc.; is a deficiency of both qi and blood, weak and cold, available red ginseng, white ginseng, party ginseng, princely ginseng, angelica Bone marrow suppression: The main symptoms are leukopenia, thrombocytopenia and anemia, which generally belong to the symptoms of liver and kidney deficiency, so it is important to nourish the liver and kidney. Inflammatory reactions: During radiotherapy, fever, oral ulcers and phlebitis often occur, and local congestion, edema, erosion and pain can occur in radiotherapy. It is heat toxin congestion or fire heat inflammation, often using heat-clearing and detoxifying drugs such as honeysuckle, forsythia, sanguinaria, eugenia, panax notoginseng, dandelion, yellow dandelion, etc. ⑤ Loss of fluid: In radiotherapy, dry throat, dry mouth, dry tongue, dry stool, yellow urine and other heat toxins injure yin and damage fluid. The human body starts to decline from the age of 50, and the metabolic ability and immune function are relatively low, so the reaction to drugs is different from that of middle-aged and young people. The common diseases of the elderly also have their special characteristics, and the clinical manifestations and the classification of the evidence types are also different. It is also very important to identify and treat the diseases on the basis of evidence-based treatment, especially in clinical practice, most of the medicines are used in combination with Chinese and Western medicine, so it is more important to analyze comprehensively and select Chinese medicines by disease type, by stage and by priority. The rational use of drugs can ensure the efficacy and safety, which is especially important in the elderly.