Fever caused by low white blood cell after chemotherapy is mainly treated with antipyretic therapy, anti-infection therapy and white blood cell boosting therapy. Low white blood cells after chemotherapy, when the body’s resistance will also decline, low immunity, it is easy to get infected and cause fever phenomenon, if the body temperature is not more than 38.0 degrees, you can take physical cooling, such as paste antipyretic paste, warm water bath. If the body temperature is over 38.0 degrees, oral antipyretic drugs, such as ibuprofen and acetaminophen, can be taken. Low leukocytes after chemotherapy need to be given to raise leukocytes drug application, for example: Diyu Lianbai tablets, recombinant human granulocyte stimulating factor, and so on. Anti-infective treatment is also needed, mostly for bacterial infections, which often require treatment with stronger antibiotic drugs, such as azithromycin, roxithromycin, and so on. In addition, low white blood cells after chemotherapy must pay attention to the diet to increase nutrition and appropriate exercise, which helps to enhance the resistance.