The lack of strength after chemotherapy is mainly due to the weakness caused by the patient’s leukocyte drop, liver and kidney function damage, hypoproteinemia, anemia, vomiting and vomiting after chemotherapy. Usually, leukocyte boosting therapy, liver protection, diuretic, kidney protection therapy, nutritional support therapy, etc. 1. Leukocyte boosting therapy: Leukocyte drop is usually easy to appear on the 3rd day after chemotherapy, and it needs to be rechecked on the 3rd, 7th and 14th day after chemotherapy for timely detection and timely leukocyte boosting symptomatic therapy. Such as injection of recombinant human granulocyte colony-stimulating factor; 2. Liver, diuretic and kidney-protective therapy: liver and kidney function damage usually starts to appear only 1 week after chemotherapy, and liver and kidney function can be rechecked on the 7th and 14th day after chemotherapy. When liver and kidney function impairment is detected, liver-protective, diuretic and kidney-protective symptomatic treatment should be performed in a timely manner. The hepatoprotective treatment can be aldosterone and azathioprine combination, diuretics can be furosemide, anisodone and so on. And kidney-protective treatment can be oral or intravenous drip iron, such as ferrous sulfate tablets, dextran iron injection, etc., but also regular subcutaneous injection of erythropoietin, such as daipoetin alpha injection; 3, nutritional support treatment: in monitoring the blood picture, liver and kidney function, if found obvious hypoproteinemia, anemia, can be infused with human albumin, plasma, red blood cell suspension. As well as strengthen nutritional support treatment, choose high-quality protein diet, such as beef, eggs, etc.; 4. Other treatment: For patients with nausea and vomiting, symptomatic treatment can be carried out by antiemetic drugs, such as gastrofacial, ondansetron, and glucocorticoids, such as prednisone, dexamethasone. Usually, it is also necessary to drink more warm water to facilitate the discharge of chemotherapy metabolites and reduce the above-mentioned side effects.