When a child has a high fever of 39 degrees, try physical cooling first, such as wiping the child’s whole body skin with a warm towel, especially the armpits, groin and neck, which are rich in large blood vessels, for a slightly longer period of time, which is good for lowering the body temperature. If the child’s temperature can be lowered to below 38.5 degrees, there is no need to take antipyretic medicine. If the temperature does not come down, the child needs to take antipyretic medicine for treatment. At this time, the child can be given ibuprofen suspension, which can be repeated once after a general interval of 4-6 hours, and no more than 4 times a day. If the fever is caused by septicemia in the throat, antibiotics can be used. If the fever is caused by other reasons, you need to go to the hospital for specific examination and treatment.