At present, worldwide, the main treatment for malignant tumors is by means of radiotherapy and chemotherapy, in addition to surgery. Moreover, even for solid tumors in various parts or organs of the body when surgery is chosen, several courses of radiotherapy or chemotherapy are combined with it in order to completely eradicate the tumor and prevent its recurrence. For example, this is true for lung cancer, stomach cancer, liver cancer, breast cancer, cervical cancer, osteosarcoma, brain tumors, and so on. Radiotherapy and chemotherapy are the so-called “fighting poison with poison”. ” Killing 10,000 people is a great way to hurt yourself.” Radiotherapy is a sharp double-edged sword, which kills tumor cells while damaging normal cells and tissues, and seriously destroys the physiological functions of human body and damages the organs. Therefore, how to solve this pair of contradictions, prevent and correct the toxic side effects caused by radiotherapy to tumor patients, so that patients can get a better quality of life and prolong their lives, has been a major issue in front of the majority of medical personnel, and is also a problem that the majority of tumor patients and their families are eager to solve. If immune repair is not carried out in time after radiotherapy, it may aggravate the metastasis and recurrence of cancer. The rational application of TCM can help to eliminate the toxic side effects of radiotherapy and avoid the metastasis and recurrence of cancer. The most common toxic side effects of radiotherapy and chemotherapy on human body are 1. damage to heart function, which may lead to myocardial ischemia in mild cases, cell necrosis in severe cases, or even heart failure, serious complications such as arrhythmia, or even cardiac arrest; 2. damage to liver, kidney and gastrointestinal functions, such as jaundice, abdominal distension, nausea, vomiting, weakness, poor nutrition, etc. in severe cases, which may lead to The performance of renal failure is mainly proteinuria, abnormally high BUN and creatinine and other body function indicators, and in serious cases, irreversible renal necrosis, renal failure or hepatorenal syndrome. 3. Myelosuppression leads to leukopenia and even a decrease in whole blood cells (white blood cells, red blood cells, hemoglobin and platelets), resulting in a combination of severe infections (pulmonary, gastrointestinal, urinary, genital and perianal), anemia and bleeding. 4, Other, such as hair loss is also a common side effect of radiotherapy, which affects the aesthetics and the patient’s psychology. The psychological impact of radiotherapy on patients makes them lose the courage and interest in life. (Each side effect with a case) Chinese medicine theory: “With stomach qi, one lives, without stomach qi, one dies.” This shows the importance of protecting the gastrointestinal function. Generally, radiotherapy will affect the digestive function, even anorexia, nausea and vomiting for a few days, which will affect eating, but the regenerative ability of gastrointestinal function is very strong, especially in middle-aged and middle-aged people, and it will usually recover naturally. In my clinical experience, the general principles during chemotherapy are two: First, let nature take its course. Some family members, in order to promote early recovery, forcing patients to eat more, eat good (highly nutritious) things, which is often counterproductive, due to damage to the gastrointestinal function, do so, not only absorbed, but also will add discomfort. Chinese medicine believes that: “stomach to thin for tonic”, this time the diet should be appropriate light, or even change to easily absorbed and digested semi-liquid, such as porridge soup, vomiting, stop eating a meal or two is not bad, in order to facilitate faster recovery of gastrointestinal function. After recovery, nutrition can be increased appropriately, including some high protein, high nutrition food, but there must be “degree”. Radiotherapy patients, you can add some Yin products such as silver fungus, lily, for dietary therapy, because radiotherapy is very easy to damage the body’s fluids. Second, the Chinese medicine during radiotherapy must also be adjusted. If radiotherapy, always clear heat and nourish yin, but not too nourishing; if chemotherapy, to protect the stomach, and stomach first, such as the patient’s reaction is more dramatic, may stop the soup for two or three days, to facilitate the gastrointestinal “recuperation”. In radiotherapy, due to the inhibitory effect of anti-tumor drugs on human bone marrow, the decline of white blood cells is unavoidable, because white blood cells are one of the most active cells in the human body, and are sensitive to chemotherapy drugs. Patients should not be alarmed at this time, but should actively cooperate with various methods to raise white blood cells. If the patient is in the interval of chemotherapy, the time between the next chemotherapy is short, and the white blood cell decline is obvious, granulocyte-stimulating factor can be used selectively to raise the white blood cells. In fact, Chinese medicine has considerable advantages in this regard, as certain ingredients in Chinese medicine can both suppress and kill cancer cells and protect immune function. In general, patients should be psychologically prepared for the decline of white blood cells, be aware of the inevitability and recoverability of this phenomenon, and at the same time take active preventive and curative measures. How to prevent and treat the toxic side effects of radiotherapy 1.Chinese herbal medicine compound preparations Through evidence-based treatment, methods such as tonifying qi and blood, strengthening the spleen and nourishing the heart, nourishing the liver and kidneys, and tonifying the lung are used to high call the important internal organs of the human body from the destruction of radiotherapy (for example). 2.The use of Chinese herbal mono-formulas or active ingredients This means is now more widely used in clinical practice and is a hot issue in the field of research on the toxic effects of tumor treatment, including the use of Lingzhi mono-formulas and their active ingredients in capsule preparations, oral liquids, spore powder and intravenous preparations (examples of cases). There are also various preparations of Cordyceps sinensis, ginseng and other precious Chinese herbs, which are spectacular, all of which can reduce and correct the toxic side effects brought by radiotherapy to different degrees.