Chemotherapeutic drugs often kill and kill tumor cells while producing certain effects and damage to the normal cells of the body. Therefore, some toxic side effects will occur while treatment. Chemotherapy patients should pay attention to the following issues. 1.Maintain optimistic and stable emotion: A full spirit and open-minded attitude can regulate the potential of the body and increase their immune function to fight against the double blows given by the disease and drugs. 2, a regular rhythm of life: a regular rhythm of life can also be adjusted to the mental state, enhance confidence in overcoming the disease, and reduce the troubles brought about by the side effects of chemotherapy. 3.Knowledge of diseases and drugs: The discomfort caused by diseases and drug reactions can be transient or long-term, so it is necessary to be fully prepared, to develop some strategies in mind and to maintain a stable mood. Knowing some necessary medical knowledge, you can better cooperate with the treatment and achieve good results. 4. Don’t suffer from other diseases: Tumor and chemotherapy drugs can cause the body’s resistance to decline and be easily attacked by viruses and bacteria. In addition to common cold, they are also prone to pneumonia, enteritis, cystitis, etc. As a result, they cause the body’s resistance to further decrease and immunity to decline, which makes tumor easily deteriorate and recur and affects the continuity of treatment. Therefore, it is necessary to do everything possible to avoid infection of other diseases. 5.Appropriate indoor and outdoor activities and recreational activities: It is very important to cultivate certain life interests, such as listening to music, painting, playing chess, and doing some appropriate indoor and outdoor sports, which can bring pleasant life interests and maintain physical and mental health. 6.Nutritional conditioning: Tumor and chemotherapy can cause appetite loss, even anorexia, nausea and vomiting, so it is very important to make good nutritional conditioning.