When an infant has a high fever, it is important to take timely treatment measures. The common methods of fever reduction are physical fever reduction and pharmacological interventions to reduce fever. 1, infants with fever are given physical fever reduction treatment. When the baby has a high fever, generally not more than 38.5 degrees, you can first give the child physical cooling treatment, the common is warm water bath, or the application of antipyretic paste, while paying close attention to changes in the baby’s body temperature, to give timely cooling. You can also give your baby more warm water to dissipate heat through urination. Pay attention not to give the baby wear, cover too much, to avoid covering the heat. 2, when the fever persists, the fever exceeds 38.5 degrees, this time the physical cooling effect is generally not good, this period will need to give timely medication to lower the temperature, commonly used acetaminophen or ibuprofen. 3, in the cooling at the same time parents still need to timely find the cause of the baby fever, that is, the need to send to the hospital for examination, for the cause to give treatment. The above are some tips on how to do with high fever in infants, here to remind all the parents, when the baby has a high fever, it is very important to give timely medical examination and treatment to avoid delaying the health of the child.