16-year-old children belong to adolescents, if the fever, mainly depends on the fever temperature is how much? More than 38 ℃ no, if not, can be physical cooling. If more than, should be timely use of antipyretic drugs, reduce the discomfort caused by fever symptoms. It is also necessary to further clarify the cause of the fever, whether there is a pathogen infection. It is best to do routine blood tests to see the percentage or count of white blood cells, neutrophils, and lymphocytes. In the case of fever reduction, it should be timely to find out what caused the fever, in order to prevent some symptoms from manifesting after the fever is reduced, delaying the condition. Therefore, symptomatic antipyretic treatment is usually sufficient, and then the cause of fever should be identified and treated according to the cause.