Low white blood cells after chemotherapy can be treated with general therapy and medication. When patients have low white blood cells after chemotherapy, they should pay attention to avoid infection. In daily life, pay attention to personal hygiene, wash hands diligently, maintain oral hygiene, avoid being in crowded places, avoid contact with patients with colds and flu. Patients should strengthen the nutrition, pay attention to the diet light, avoid intake of stimulating food. For patients with more serious white blood cell lowering, they need to be treated with whitening drugs under the guidance of a doctor, such as whitening tablets and vitamin B4, etc. These drugs can effectively enhance the patient’s body. These drugs can effectively raise the white blood cells in the patient’s body to avoid infection. Patients who are not feeling well after chemotherapy should seek medical treatment in time, and should not blindly use drugs on their own.