Adults with fever, need to treat the cause of the symptoms, common treatments include physical cooling and drug therapy, should be specific according to the individual’s condition, physical condition, etc. to determine which way to reduce fever is effective, specific should follow the doctor’s instructions. 1. Physical cooling: applicable to all cases of elevated body temperature, but the premise to ensure that the patient’s skin is not damaged, and the process of cooling the body temperature needs to be monitored, and stop using in a timely manner after the fever subsides. Adequate hydration and warm water baths can be used to lower the body temperature. 2. Drug therapy: need to be selected according to the condition. For infectious hyperthermia, non-steroidal anti-inflammatory drugs such as acetaminophen can be applied on the basis of anti-infection; tumor hyperthermia needs to be diagnosed after exclusion of other causes, and glucocorticosteroids such as dexamethasone can be used. Certain cerebrovascular diseases cause high fever complicating coma, at this time it is necessary to apply non-steroidal drugs on the basis of the treatment of neurological diseases. There are many causes of fever, need to be combined with the symptoms to do the relevant examination, not blind fever, so as not to delay the condition. It is recommended that patients with fever go to the hospital in time to find out the cause of the disease and actively cooperate with the doctor to avoid delaying the condition.