Fever in babies is a common condition in the growing process, and babies can have fever symptoms for many reasons. When fever symptoms appear, the first thing to do is to reduce the heat according to the temperature, when the body temperature ≥ 38.5 ℃, you can apply antipyretic drugs for treatment. The choice of antipyretic drugs can be made by applying drugs containing acetaminophen components or ibuprofen components. The dose of medication is calculated according to the baby’s weight, and the medication is administered. Within 1-2 hours after the application of antipyretic medication, it is necessary to actively cooperate with physical cooling, such as drinking water, wiping with warm water, and taking a hot bath, all of which are beneficial to reduce the fever. After the treatment of fever reduction according to the temperature, the cause of the fever should be identified, so that further treatment can be given according to the cause.