Chemotherapy, short for chemotherapy, is a treatment that uses chemical drugs to stop the proliferation, infiltration and metastasis of cancer cells until they are finally killed. It is a systemic treatment, and together with surgery and radiotherapy (radiation therapy), it is known as the 3 major treatments for cancer. In clinical practice, we encounter many patients and their families who are first diagnosed with chemotherapy do not know much about it, and some of them even give up the treatment because they are afraid of chemotherapy. Therefore, we would like to give a brief description of chemotherapy here in the hope that we can give you an understanding of chemotherapy. In practical application, chemotherapy is mainly to inject chemotherapeutic drugs into the human body through the vascular route after a certain proportion of configuration, so as to play the role of anti-tumor. Of course, there are other methods such as oral chemotherapy (i.e. oral chemotherapy drugs), intracavitary therapy (for cancerous fluid accumulation in the thoracic cavity, abdominal cavity and pericardial cavity, chemotherapy drugs are injected into the body cavity of various lesions after treatment), intralesional chemotherapy (for the prevention and treatment of central nervous system malignant tumors, chemotherapy drugs are administered through the lumbar puncture sheath) and arterial cannulation chemotherapy (e.g. external carotid artery branch cannulation for head and neck cancer, hepatic artery cannulation for primary liver cancer or liver metastases, etc.). Chemotherapy has different adverse reactions due to different drugs, different administration methods, different doses, etc. We can use different response methods in advance to alleviate the adverse reactions, which are summarized as follows: 1. Gastrointestinal reactions: nausea and vomiting are common in the application of high-dose platinum, alkylating agents, anthracyclines and other chemotherapy drugs. -2, urinary system damage: platinum, cyclophosphamide and other applications, patients should drink more water (hydration) more urination, if necessary, can be added to the relevant protective drugs. 3, myelosuppression: that is, after chemotherapy can appear red blood cells, white blood cells and platelet count decline, often occurs in about 7 to 14 days after chemotherapy, so the end of chemotherapy After chemotherapy, blood routine should be checked regularly (usually once in 3 days). Cardiotoxicity: It is common to use anthracycline cytotoxic drugs repeatedly and repeatedly, but it is less common in other combination regimens. 5. Mucositis: It is common in patients who use 5 fluorouracil, bleomycin, high-dose methotrexate, etc. It can cause serious mucosal ulcers in the gastrointestinal tract, resulting in difficulty in eating, pain and infection. In the case of hematologic tumors, patients should pay attention to early prevention and give antibiotics, painkillers and supportive treatment if necessary.6. Other reactions: hair loss; liver and kidney function damage; pulmonary fibrosis; local blood vessels, skin sclerosis, pigmentation, phlebitis; certain drug extravasation can lead to local muscle burns, or even blisters, ulcers, necrosis, etc.; certain drugs can lead to paralysis of peripheral nerves of the limbs such as high-dose cisplatin or vincristine, etc. For patients with hematological tumors, the integrated treatment of Chinese and Western medicine can greatly reduce the adverse reactions of chemotherapy.1. Before chemotherapy, we implement the placement of PICC tubes to ensure the successful completion of chemotherapy, avoid extravasation of chemotherapy drugs and damage to peripheral blood vessels; strengthen the psychological counseling and professional knowledge of patients and their families to make them cooperate with the treatment; apply the relevant adjuvant drugs in advance to reduce the adverse reactions of patients; strengthen the Chinese medicine to strengthen the psychological counseling and professional knowledge of patients and their families to make them cooperate with the treatment. In Chinese medicine, strengthen the treatment of strengthening the spleen, benefiting the qi and nourishing the blood, together with traditional Chinese medicine moxibustion and auricular acupressure, to improve the immunity of the body; 2, during chemotherapy, pay close attention to the changes in the condition, strengthen the treatment of Chinese medicine, to dredge the liver and regulate the qi, lower the stomach and stop vomiting, together with umbilical therapy, acupuncture point compresses, etc. to reduce the adverse reactions of chemotherapy drugs; 3, after chemotherapy, strengthen the treatment of strengthening the spleen and benefiting the qi, benefiting the kidneys, activating the blood, etc. After chemotherapy, Chinese medicine should be used to strengthen the spleen and qi, and to invigorate the kidney and blood, and to promote the early recovery of bone marrow hematopoiesis. Adverse reactions vary from person to person, and some treatment will definitely occur, but we should not give up the treatment because of the adverse reactions. We advocate that medical and nursing staff should strengthen the education on general health and related professional knowledge, pay attention to strengthening psychological counseling and enhancing doctor-patient communication, so that everyone can have a full understanding of chemotherapy and the chemotherapy regimen to be used, and avoid the occurrence of related adverse reactions as much as possible. The doctors and patients should work together to overcome difficulties and fears and face the disease together.