After chemotherapy most patients will show symptoms of nausea and vomiting. Generally speaking, it is not recommended to eat too greasy things, you can properly supplement the high quality protein diet, such as eating fish, eggs, protein powder, etc. When eating fish, not only drink fish soup, but also eat fish meat, which may recover faster. Nutrition is improved and the patient’s body resistance is enhanced, which also helps to reduce the side effects of chemotherapy. Chemotherapy is a relatively common measure of anti-tumor treatment and can be used as adjuvant chemotherapy after surgery. Some of those who cannot be operated before surgery can also do neoadjuvant chemotherapy first to shrink the tumor and reduce the stage, so that there is still a chance of re-surgical treatment later. For advanced malignant tumors that cannot be operated, palliative chemotherapy can also be done to control the development of the disease. Tumor is a kind of consuming disease and chemotherapy is more harmful to human body, so it is important to increase nutrition.