Generally speaking, the following are the main reasons why children sweat after fever reduction: first, due to the application of antipyretic reaction, because after taking antipyretic drugs, such as acetaminophen or ibuprofen, there will be a subsidence of fever under the action of the drug, and at this time the whole body will be sweating, and sweat can take away a lot of heat through the sweat. Secondly, due to the weakness of the body, after the fever is reduced, the body often has a temporary weakness, especially if a large number of applications of antipyretic drugs, this time will also cause sweating due to the weakness of the body. Sweating after fever reduction in children can be improved by applying oral rehydration salts.