The use of ice for cooling, the choice of parts is usually bilateral neck, bilateral armpits, bilateral groin, forehead and other areas, the principle of cooling is to rely on ice to take away a lot of body heat, so as to achieve the effect of cooling. In the ice cooling at the same time, but also pay attention to often check the local skin condition, pay attention to the replacement parts to avoid frostbite, and ice should pay attention to avoid placing in the position of the chest, otherwise it may lead to gastrointestinal dysfunction occurs. In addition, for infants and young children, it is best not to use ice to cool down, because infants and young children’s cerebral cortical development is not yet complete, ice is very easy to cause infantile convulsions. In addition to ice packs, you can also use fever patches, stick on the forehead or the back of the neck, can also achieve the effect of cooling.