After chemotherapy, colon cancer patients are advised to drink more water first, which can speed up the metabolism of drugs in the body and relieve the symptoms in time, and try to eat mainly liquid food, such as millet porridge, rice porridge, etc., and pay attention to eating less and more meals. You can eat more dietary fiber-rich foods, which can effectively improve the peristalsis of the intestines and promote the recovery of the disease, or you can drink some protein powder to improve your immune system.