High fever caused by viral colds can be reduced by physical cooling, medication to reduce fever, and colds should be treated at the same time. 1. Physical cooling: wring the towel soaked in cold water into a half-dry, on the forehead or armpits, groin and other parts of the large blood vessels, every 3-5 minutes to change; wrapped in a layer of towels on the outside of the ice bag, placed on the forehead, cold compress 2 minutes between a few minutes to cold compress again; warm bath: towel dipped in warm water to wipe the whole body, wiping the focus of the neck, armpits, elbows, groin; 2. Drugs to reduce temperature: when the body temperature exceeds 38.5 ℃, you can take ibuprofen or acetaminophen and other drugs to reduce fever, you can give proprietary Chinese medicines, such as Chai Huang granules, Xiao Chai Hu to reduce fever, can be repeated every 6-8 hours. 3. For the treatment of viral colds: medicines such as oseltamivir can be given for influenza, and anti-infective medicines such as cephalosporins should be given if secondary bacterial infection occurs. In addition, you should rest and drink more water. In the course of the above treatment, if symptoms worsen, convulsions, high fever does not go down, respiratory difficulties, etc., should immediately seek medical attention.