Currently recognized fever-reducing drugs, the U.S. FDA is more recognized is ibuprofen, relatively few toxic side effects on children, Tylenol is antipyretic and analgesic, its main ingredient is acetaminophen, these two drugs in children’s fever in the use of frequent, the correct use of fever-reducing medications should pay attention to the following aspects: 1, a clear cause of fever, fever as a form of manifestation, should be investigated for the cause of the disease, and the use of antipyretic fever reduces the fever, it is easy to cover up the disease, delay treatment. Delay in treatment; 2, usually children’s body temperature of 38, 5 ℃ or less do not recommend the use of chemical antipyretic drugs, recommended physical cooling, such as not to achieve a better cooling effect, can be combined with antipyretic drugs; 3, such as the use of antipyretic drugs or fever does not go down, or the temperature reaches 39 ℃ or 39 ℃ or more, and the occurrence of convulsions, convulsions should be immediately sent to the hospital, drip injection of antipyretic injection, to prevent high fever has serious consequences.