Whether or not a fever of 39 degrees is cured is related to the physical quality of the individual and the cause of the disease. If the fever is caused by upper respiratory tract infection, the body quality is better, resistance is stronger, you can drink more water, pay attention to rest, supplement vitamin C, to prevent dehydration phenomenon, usually will appear since the phenomenon of healing. If the physical quality is relatively poor, low resistance, it is recommended to take oral ibuprofen, acetaminophen or indomethacin suppository anal, with antipyretic and analgesic effect, can play a rapid role in reducing fever. If the fever is caused by tumor, generally there is no possibility of cure, which is caused by tumor tissue necrosis, the effect of oral drug treatment is not good, can be treated by radiotherapy. If the high fever caused by lung abscess does not go down, there is also no cure possible, need to use antibiotic drugs to control the infection in the lungs.