A fever of 38℃ after chemotherapy is often due to damage to the body’s normal white blood cells during chemotherapy, causing a sharp drop in the body’s immunity, which may cause a more serious fever even in the case of a very mild infection. First of all, if it is a bacterial infection, it needs to be treated with intravenous antibiotics, such as ceftriaxone or cefradine, quickly. If it is a viral infection, you can use Xiyampin or Ribavirin. In addition, for fever of 38℃, you can take fever-reducing medicine of the Chinese class, such as cold and fever clearing granules, or you can use physical cooling methods, such as putting fever-reducing patches on the forehead, neck, back, palms and feet to relieve the discomfort caused by fever. In addition, if the fever still does not go down, this is the time to give the body an injection of immune albumin or globulin for treatment, which helps to strengthen the body’s resistance and promote the healing of viral or bacterial infections.