Salt-heavy foods should be avoided as much as possible after chemotherapy. Heavy salt intake after chemotherapy may aggravate the adverse digestive system reactions and may also cause an increase in blood volume to occur, and patients should avoid overly salty food intake. After undergoing chemotherapy, more adverse reactions can occur, such as abdominal pain, bloating, intense vomiting and other digestive symptoms. Some patients also experience hematologic reactions such as decreased platelet levels and leukopenia. After chemotherapy, it is important to maintain a light diet, avoiding high-fat and high-salt foods, and strengthening nutrition to avoid malnutrition caused by vomiting and nausea. Patients should increase the amount of water to promote the body’s metabolism, so that the drug can be metabolized more quickly to reduce the harm of chemical drugs on the body. Good care should be taken after chemotherapy, and the body should consult the doctor in time if there is any discomfort.