If infants and children have fever symptoms after infection, they can be given fever-reducing drugs or physical fever-reducing methods, and physical fever-reducing methods are the most safe and reliable. For infants and young children, the following means of physical fever reduction can be used: first, children can be given a warm bath to cool down the water temperature can be maintained at about 42 ℃, so that the child’s body temperature can be effectively reduced through the evaporation of water. Especially when giving children a warm bath, you can focus on wiping the armpits and groin of the child with a towel, because these parts have the circulation of large blood vessels, so that the heat can be effectively distributed through the circulation of blood. Secondly, children can be cooled down by means of antipyretic patches. If the body temperature of children is not very high, below 39℃ in the armpits, it can be improved by applying antipyretic patches, which are often applied to the forehead and the back of children on the large vertebrae points.