Generally, when the fever is high, you have to take fever-reducing medication in time, commonly ibuprofen or acetaminophen. The effect of antipyretic medicine is to reduce fever only through the child sweating and heat dissipation. Therefore, after taking antipyretic drugs, it is important to drink more water appropriately. If the child is not sufficiently hydrated and has varying degrees of dehydration, he or she may not sweat after taking the antipyretic medication, and if he or she does not sweat, the heat will not be dissipated and the antipyretic medication will be less effective. In addition to taking antipyretic drugs and drinking more water, you should also dress your child in relatively loose, cotton clothes to help absorb sweat, dissipate heat and reduce fever, and you can also give your child a warm bath or a warm water bath and other physical cooling methods to help reduce fever. Of course, in order for the fever to stop recurring and to reduce fever effectively, the original cause of the fever should also be treated.