How many days for fever to recover after chemotherapy for acute myeloid leukemia m1 depends on what caused the fever, if it is caused by chemotherapy drugs, it can be relieved in 2~3 days. If it is caused by infection, it is necessary to decide how many days the fever will recover according to the effect of anti-infection. 1. The chemotherapeutic drugs used by patients such as cytarabine will cause fever, mainly characterized by the emergence of 24 hours after the use of drugs, manifested as chills, chills, followed by fever, body temperature of 38 ~ 40 ℃, physical cooling, antipyretic and analgesic drugs such as ibuprofen, etc., can be relieved in 2 ~ 3 days after oral administration. 2. After chemotherapy, the own immune system is damaged, which will lead to a decline in the body’s immunity, infection, resulting in fever, mainly characterized by increased body temperature, rapid heart rate, shortness of breath, etc. After appropriate antibiotic treatment, if the infection is controlled, the body temperature can be returned to normal, but if the infection is not well controlled, the fever can continue for many days and is difficult to be relieved. Anti-infective drugs include levofloxacin, cephalosporin, tigecycline, vancomycin, linezolid, polymyxin, meropenem and so on. Acute myeloid leukemia m1 fever after chemotherapy, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of physicians early formal treatment.