As natural medicines, Chinese herbal medicines are increasingly favored by modern people, and are widely used in chronic diseases, sub-healthy and even healthy people. With the expansion of modern development and use, adverse reactions to Chinese herbal medicines and their preparations have been reported repeatedly. Adverse drug reaction reports in recent years show that Chinese herbal medicines rank third only after antibiotics and antipyretics in the adverse drug reactions. Clinical practice has proved that we should scientifically recognize Chinese medicine, the reason why Chinese medicine can cure diseases, to a large extent, is to correct the imbalance of yin and yang of the human body with the bias of its medicinal properties, not to mention the fact that some Chinese medicines also contain certain toxic ingredients. Chinese medicine pay attention to the overall concept of treatment, evidence-based treatment, medication, pay attention to the rational mix, but also dietary life taboos, clinically seen, leading to the application of traditional Chinese medicine to produce toxic side effects of a considerable portion of the reasons are due to improper use of caused by more knowledge of traditional Chinese medicine medicine, help to minimize the adverse effects of traditional Chinese medicine. 1, identification of drugs: identification of the wrong medicine is not the right evidence, will aggravate the body of yin and yang bias or bias decline, so that the condition is more serious. Such as sores for a long time, gonorrhea, blood loss patients even if there is evidence of the surface should be careful to use antidepressants; surface deficiency sweating, yin deficiency sweating forbidden antidepressants sweating medicine; real heat, blood deficiency avoid using warming medicine. Again, such as antelope antidote tablets have wind-dispersing and detoxifying effect, the treatment of exogenous wind-heat effect is good for exogenous wind-cold will exacerbate the condition; cold and clear heat punch for pungent and warm antidote, suitable for feeling the wind-cold cold cold due to wind-cold cold, such as literally from the “clear heat” to understand and used for the wind-heat cold or feeling the wind-cold depression for a long time to turn the heat of the evidence. The opposite; Tongxuan Lung Pills for wind-cold lung due to cough effect, if used for lung-heat cough is inconsistent with the evidence, the efficacy can be imagined. 2.Reasonable compounding: reasonable compounding is beneficial to the treatment, Chinese medicine formula is very delicate; Chinese and Western medicines should also pay attention to the changes in the physical and chemical properties of the drugs to affect the therapeutic effect or produce toxic side effects. (1) Chinese medicine: Chinese medicine prescription has both indications and contraindications for each flavor of medicine. There are seven conditions in the combination of Chinese medicines, such as the seven conditions, the ruler, the minister and the auxiliary, the three conditions, the size and the urgency, etc. These conditions make the combination of Chinese medicines to achieve the targeted treatment of diseases, enhance the efficacy, and reduce the toxicity and side-effects of the medicines. In the seven conditions of matching, the phase must be, the phase is to make the drug to increase the effect, the phase fear, the phase kill is to make the drug to reduce the toxicity, the phase evil is to make the drug to reduce the effect, the opposite is to make the drug to increase the toxicity, the eighteen anti-Chinese medicine, nineteen fear, pregnant women contraindications and so on is a summary of the experience of thousands of years of traditional Chinese medicine, can not be ignored, so the formula should be avoided in the phase of the evil, the opposite. The term “Junchen Zuoji” refers to the status of each drug in the formula and the pattern of change in the sex effect of the pairing. Some adverse reactions are not due to the toxic side effects of traditional Chinese medicine itself, but caused by irrational compounding, for example, in June 2005 in Kunming, Yunnan, an elementary school collective drinking “cauldron medicine” poisoning incident, more than 200 elementary school students for the prevention of chicken pox collectively taking a “cauldron of traditional Chinese medicine After the “cauldron of Chinese medicine” was taken collectively by more than 200 primary school students for the prevention of chicken pox, 151 students showed symptoms of poisoning such as abdominal pain, diarrhea, vomiting and headache one after another, and one elementary school student died of failure to save his life. Afterwards, it was found that each of the 15 flavors of traditional Chinese medicine in the prescription complied with the provisions of the National Pharmacopoeia and was a qualified drug, which led to the poisoning, due to the irrationality of compounding and more bitter and cold drugs. Another example is that Zhimu and ginseng have hypoglycemic effect in pharmacological study, but the hypoglycemic effect is weakened when the two drugs are used together. This shows that the application of Chinese medicine compounding cannot be based on pharmacological study only, but should be based on the principle of Chinese medicine formula. It should also be noted that the combination of Chinese medicines should avoid too much and too many flavors, otherwise it will reduce the therapeutic effect and increase the incidence of adverse reactions due to the mutual constraints of drug effects. (2) Compounding of Chinese and Western medicines: With the extensive development of the combination of Chinese and Western medicines in the treatment of diseases, the combination of Chinese and Western medicines is becoming more and more common. Undeniably, the rational application of Chinese and Western medicines can often shorten the course of the disease and improve the therapeutic effect, but there are many irrational and unscientific phenomena of combining Chinese and Western medicines in the clinic, resulting in reduced therapeutic efficacy and even adverse reactions. For example, a large number of tannin-containing traditional Chinese medicine, such as rhubarb, five times the seeds, q storage, pomegranate skin, the ground elm, bumpy meat, tiger’s stick, etc., should not be used in conjunction with oral antibiotics. Because tannin can be generated with alkaloid salts, glycosides, proteins and other insoluble precipitates, which are not absorbed by the gastrointestinal tract, hindering the efficacy of antibiotics; acidic Chinese medicine should not be combined with alkaline Western medicine, such as Chinese medicine Baohe Pills, six flavors of rhizome pills, etc., contain acidic Chinese medicines (烏梅).hawthorn, schizandra chinensis (五味子).cornelian cherry blossoms, etc., and should not be combined with the Western medicine aminophylline, aluminum hydroxide gel, gastroschutzpine, Sodium bicarbonate and other alkaline drugs; by the same token, strong alkaline Chinese medicine should not be combined with more acidic Western medicine; Chinese medicine ephedra and Chinese medicines containing ephedra, such as Chuanbei Jing tablets, cough and asthma cream, Fangfeng Tongsheng Pills, etc. contain ephedrine, can not be used in conjunction with antihypertensive drugs, because ephedrine can constrict arterial blood vessels and increase blood pressure, can be antagonistic with antihypertensive drugs, affecting the efficacy of antihypertensive drugs, and can even lead to the patients Blood pressure rise; licorice and hypoglycemic drugs, pharmacological antagonism; in addition, diabetic patients in the service of metformin, euglycemic and other hypoglycemic drugs, such as glucose avoid ginseng, antler and other tonic drugs, because these traditional Chinese medicines contain active ingredients that can promote glucose xenobiosis, reduce the use of glucose by the human body tissues, reduce glucose decomposition, thereby increasing blood glucose, aggravating the condition; Chinese and Western medicines and drugs with the same effect of repeated combinations of medicines, which can make effective Dosage is too large, increase the adverse reaction, such as Chinese medicine quick-acting heart pill and western medicine cardiac pain or cardiac pain, Chinese medicine cold and flu clear heat punch and western medicine cold and flu through the combination, etc.; Chinese and western medicines of the same kind of varieties of repeated use, such as thirst pills and euglycemic combination, is the sky pill and ergotamine caffeine combination, Vitamin C Yin Qiao tablets and Baxuoning combination, etc., these proprietary Chinese medicines, respectively, already contained euglycemic, caffeine, paracetamol and other western medicines, blindly combined can be used for the purpose of the use of the drug, but also for the purpose of the use of the drug. These pCms have contained eugenol, caffeine, paracetamol and other western medicines, and blindly combining them can increase the dose of medicines, thus increasing the toxic side effects; Chinese medicine Mutong, Houpu, Fangji, Xinxin, etc. contain aristolochic acid, and should not be combined with western medicines, such as sulfonamides, aminoglycosides, quinolones and other antibiotics, because the above Chinese and western medicines have nephrotoxicity, and combining them will aggravate the damage to the kidneys. 3, discretionary dosage: the role of some Chinese medicines is related to the dosage, should be based on the needs of the disease discretionary dosage. For example, licorice 1 to 3 grams can harmonize the nature of the drug, 5 to 15 grams can benefit the heart, a large number of taking or small amount of long-term use, the patient can appear in the epigastric congestion, edema, hypokalemia, elevated blood pressure, etc.; safflower amount of small and gas nourishment of the blood, amount of large blood stasis; hematite amount of small and blood, amount of large blood; ascending flax is less used to remove heat and toxins, and more to lift the Yang lift the trap; wheat malt in small doses to eliminate the accumulation of food and digestion, detoxify and prolactivate the breast milk, the large dose of single-use dissipation of the strong force, the exhaustion of qi and blood and return to the breast. Dissipation of qi and blood and back to the breast. In addition, the dosage should be decided according to the main and auxiliary of the drug in the formula, and the severity of the drug. In the composition of the formula, the amount of the main drug is heavy, the amount of auxiliary drugs is light; where the use of poisonous and harsh drugs, we must start with a small amount, and then according to the patient’s condition after taking the drug to increase or decrease as appropriate. 4, in the disease that stops: do not arbitrarily long-term use of drugs, to avoid chronic accumulation of adverse reactions. The content of active ingredients in Chinese medicine is low, the effect is gentle and long-lasting, but chronic patients taking long-term, often due to the accumulation of toxic side-effects of the substance to produce adverse reactions. Rhubarb as a laxative (dosage of 1 to 5 grams) can not be taken for a long time, small doses (0.05 to 0.3 grams) showed astringent activity, resulting in constipation. Germany’s drug regulatory agency – the Federal Institute for Drugs and Medical Supplies in 1996: containing rhubarb genus (rhubarb root) and other botanicals, raw drugs, raw drug preparations and extracts, can only be used for constipation for a short period of time, but can not be used to help digestion, blood purification, weight loss, etc., and should not be taken for more than 1 to 2 weeks continuously. Again, American scholars analyzed 133 cases of chronic weakness of ginseng, patients on average 3 grams of ginseng per day, for one month, all the symptoms of central nervous system excitation and stimulation, there are still 26 people with pharyngeal stimulation, 9 people with hypersexuality, 6 people with depression, 14 people with swelling, 7 people with reduced appetite, 5 people with decreased blood pressure, 4 people with amenorrhea, 4 cases of which due to overdose, leading to depersonalization and mental disorganization. Long-term use of small doses of aristolochic acid-containing preparations can lead to chronic renal failure, in recent years has been found to have nephrotoxicity of traditional Chinese medicines and Lei Gongteng, Caowu, motherwort, CangErZi, smallpox pollen, Aloe vera, WeiLingXian, Tu FuLing, DazhongYi, ze laguna, BaiDouWeng, bitter ginseng, centipede and so on dozens of kinds of dozens of more, in the taking of traditional Chinese medicines containing these ingredients should be noted that can not be served for a long time. As a health drink for a long time, it is easy to lead to loose stools, dietary reduction, stomach and abdominal congestion and discomfort and wasting. Long-term use of Tianwang tonic Dan, Zhu Sha An Shen Pill, Angong Niuhuang Pill, Zixue Dan, to Bao Dan, etc., will be due to the accumulation of chronic mercury poisoning and so on. 5, dietary taboos: medicine has medicinal properties, food has food, gender contradiction is not conducive to the patient, therefore, taking traditional Chinese medicine often have dietary taboos, commonly known as taboos. Such as serving sweating medicine or treatment of cold disease avoid eating cold, regulating the spleen and stomach medicine or treatment of hot disease avoid eating hot and greasy, swelling medicine avoid eating beans, cough and asthma medicine avoid eating fish, rhubarb, He Shouwu, honey avoid onion, Poria cocos, Poria, tea, turtle shells avoid amaranth and so on. Doctors should make the necessary contraindications, medication risk to the patient to make the necessary tips, so that its attention and make a choice, otherwise easy to cause adverse reactions. In conclusion, Chinese medicine is also medicine, and western medicine has toxic side effects. From a macroscopic point of view, the treatment of traditional Chinese medicine is to correct the human body’s yin and yang bias bias of the bias of the bias of the decline of cold medicine can clear the heat, but easy to injure the Yang; hot medicine can dispel the cold, but can consume yin; attacking and attacking the medicine can be eliminated, but can injure the righteousness of the drug; nourishment medicine can support the righteousness of the evils of the love of the evils of the idea that the concept that traditional Chinese medicine is completely non-toxic is unscientific. In recent years, there have been Chinese medicine detoxification wind, have also seen a business will be cattle yellow detoxification tablets known as “human scavenger”, said the disease can be often served without disease, not knowing that long diarrhea can make the body produce a number of dysfunctions; cattle yellow detoxification tablets are not only bitter and cold and itself contains poisonous ingredients. As a clinical worker, not only to rationalize the application of traditional Chinese medicine, but also has the responsibility to remind the majority of patients not to blindly follow the trend, do not be fooled by the business advertising.