When a child has a fever, the methods of physical cooling are as follows: 1. Reduce the clothes worn by the child, loosen the wrapping, make the environment in which the child lives cool, comfortable and ventilated. 2. Give the child more water as appropriate, because heat dissipation is achieved through the evaporation of water, and when the body is dehydrated, it is difficult for the baby’s temperature to go down. 3. 4, if the fever when the child is in good spirits, warm hands and feet, not accompanied by chills, you can use ice bags or ice, placed on the child’s head for cold compresses, can also be placed in the armpits, groin and other parts of the circulation of large blood vessels for cold compresses, has a good effect on cooling.