A baby with a fever greater than or equal to 37.4°C is considered to have a fever, and physical cooling can be taken in a feverish state. There are physical cooling treatments alone, and there are also medicines and physical cooling methods together. Mostly, physical cooling can be given alone for low fever or when the child is in a good mental state with high fever. For example, if the body temperature is lower than 38℃ or even if the child’s body temperature is 38.5℃, the hands and feet are not cold, the peripheral circulation is good, and the child’s mental state is good, physical cooling can be taken alone, such as drinking water, using antipyretic patches, taking a hot bath and wiping with warm water to reduce fever, which can also achieve a good purpose of reducing fever. When the body temperature is greater than or equal to 38.5 or the child is in a high fever state, with cold hands and feet and poor peripheral circulation, it is necessary to apply antipyretic drugs along with physical cooling to achieve a good antipyretic effect.