If the fever recurs after the fever has subsided, treatment such as antipyretic treatment for colds, anti-infection treatment for pneumonia, and anti-tuberculosis treatment for tuberculosis will be needed depending on the cause of the illness. 1. Cold fever is a common illness that can cause recurrent fever, which requires prompt physical cooling or fever-reducing treatment with acetaminophen. 2. Pneumonia, lung infection can cause recurrent fever, the fundamental treatment is to control the infection, then the fever symptoms can be controlled. After clarifying the bacterial infection, according to the results of sputum culture and other tests, choose penicillin, ceftriaxone and other drugs, symptomatic anti-infection treatment. 3. Tuberculosis may have symptoms of tuberculosis poisoning such as low fever, fatigue, night sweats, etc. Some patients may have high fever. Anti-tuberculosis drugs such as isoniazid and rifampicin are usually used for treatment. There are many causes of recurrent fever, so it is recommended to consult a doctor in time, conduct relevant examinations to clarify the cause of the disease, and then follow the doctor’s instructions for treatment. The above drugs should be used under the supervision of a physician.