When the fever is 39℃, as long as it is not viral encephalitis or other brain diseases, it will not burn the brain. The cells or proteins in the human body will only degenerate when the body temperature exceeds 42℃, and only then will the brain be burned. Of course, it is also necessary to take antipyretic drugs for treatment, you can take ibuprofen suspension or acetaminophen pellets to reduce fever. In addition, it is best to combine physical cooling methods, such as using a warm towel to wipe the patient’s skin all over the body, especially in the armpits, groin, neck and other places rich in large blood vessels, the wiping time can be slightly longer. The use of physical cooling methods can not only prolong the effect of antipyretic drugs, but also reduce the use of antipyretic drugs. If the temperature of infants and children under three years of age exceeds 39°C, they must take antipyretic drugs, and can take antelope horn preparations, which can prevent the occurrence of high fever convulsions, which can produce irreversible damage to the child’s brain cells once they occur and are very dangerous.