The baby’s fever of 38.6℃ is a case of medium to high fever, which is generally related to acute upper respiratory tract infection, pneumonia, bronchial inflammation and other factors. It is recommended to take ibuprofen suspension to help reduce fever, as well as anti-inflammatory drugs, such as cefprozil granules, busulfan anti-inflammatory oral solution, as well as with alcohol baths, cold water ice packs forehead, which helps to quickly cool down, but also acetaminophen suppositories can be used to plug the anus to help reduce fever. During the period of fever, you must pay close attention to observe whether your child has febrile convulsions, impaired consciousness, increased respiration, etc. Once these complications occur, you must be promptly admitted to the hospital for treatment. Pay attention to rest and drink plenty of warm water, which will help your baby sweat and help reduce the fever. Be sure to maintain a light diet and not eat greasy or too sweet foods that may affect digestion.