Adverse reactions of chemotherapy drugs Chemotherapy drugs kill tumor cells and at the same time kill cells of normal tissues, especially blood and lymphatic tissue cells that are growing and developing vigorously in human body. The chemotherapeutic drugs currently used in clinical practice have different degrees of toxic side effects, and some serious toxic side effects are the direct reason to limit the dose or use of the drugs. The main adverse reactions are the following: 1, myelosuppression: manifested as white blood cells, neutrophils, platelet reduction or hemoglobin reduction, severe myelosuppression can cause infection or bleeding, regular, such as weekly blood tests can be timely detection of the above abnormalities, and according to the actual situation to take appropriate measures. 2, nausea and vomiting: the general population is relatively mild, can be used to stop vomiting; a few people may be very serious, can not eat and drink normally, untimely treatment can cause serious dehydration and ion disorders, should be promptly referred to the doctor. 3, diarrhea: generally mild, can be treated with oral Simethicone; a few people may be very serious, untimely treatment can cause serious dehydration and ion disorders, should be promptly consulted. 4, constipation: some drugs can cause more serious constipation, preventive application of related drugs can avoid or reduce constipation. 5, neurotoxicity: mainly manifested as peripheral neurotoxicity, the most common is mild numbness, there may also be tingling sensation, pain, inability to walk, loss of tendon reflexes. 6, rash: some chemotherapy drugs can cause a red rash with or without itching, and some of the rash can break down on its own. The rash can be seen at the dermatology clinic. 7.Hair loss: Some chemotherapy drugs can cause severe hair loss, which affects your image. Cut to short hair before chemotherapy can reduce the impact of hair loss on you. 8.Fever: If you have fever after chemotherapy, be sure to go to the hospital outpatient/emergency clinic for routine blood tests in time and pay attention to wearing a mask to prevent cross-infection. Review lung CT if necessary. 9, delayed diarrhea: the average time of the appearance of the first dilute stool in the 5th day after the drug, such as the use of antidiarrheal drugs, more than 50% of patients appear III, IV degree diarrhea with drugs, and even life-threatening, must be strictly in accordance with the doctor’s instructions for medication, and timely telephone contact with the doctor. 10, peripheral neurotoxicity: dose-related, accumulative, reversible peripheral neurotoxicity, manifested as sensory dullness, abnormal sensation, with or without painful spasms, aggravated by cold, occasionally seen in acute laryngospasm, usually within a few hours after the drug, mostly occurs when cold, manifested as subjective feeling of breathing and swallowing difficulties, but there is no evidence of any respiratory obstruction (hypoxia, laryngospasm, bronchospasm) In this case, a hot towel can be placed over the mouth and nose. In this case should avoid contact with cold water, cold air, and cold drinks into cold food. 11, hand and foot syndrome: manifested as hand and foot numbness, dullness, abnormal sensation, tingling, painless or painful sensation, skin swelling or erythema, desquamation, blistering or severe finger (toe) furrow inflammation. Taking better care of your hands and feet can reduce the impact of hand-foot syndrome on you.