Chemotherapy is the most commonly used treatment during cancer treatment, which can help cancer patients suppress cancer cells and control their disease. However, chemotherapy drugs are more harmful and are prone to side effects during use, which can cause a drop in white blood cells, as well as hair loss, nausea, vomiting and other symptoms. To avoid the continuous decline of white blood cells, patients need to take active measures to improve them. They can take the correct leukocyte- and platelet-raising drugs, including pyridoxine (vitamin B6), 6-aminopurine (vitamin B4), shark liver alcohol, reserpine, inosine and various nucleotide preparations, according to medical advice. In addition, patients can also rise white blood cells through the following foods: 1, patients can take five red soup, that is, with brown sugar, red dates, red beans, red peanuts, wolfberry boiling soup, or boil soybean bone soup, remove the oil and eat beans and drink soup; 2, eat other foods rich in selenium, such as asparagus, mushrooms, purple potatoes, etc., are conducive to raising white blood cells; 3, patients can eat more foods rich in vitamin C and high-quality protein, such as fresh fish, meat Eggs, milk, etc., but when eating should pay attention to the cooking method, not fried. After chemotherapy, in addition to raising white blood cells through dietary regimen, patients should also carry out appropriate activities, pay attention to warmth, avoid infection of wind and cold, maintain a good mood, and ensure sufficient sleep to reduce the occurrence of side effects after chemotherapy.