Babies should not sweat when they have a fever, because the body’s self-mediation can take away the body surface temperature through sweating, which helps to reduce the body temperature and relieve the symptoms of fever. If the sweating time is too long the body temperature can not be distributed faster, resulting in a continuous rise in body temperature and symptoms of febrile convulsions. The child’s eyes are staring, the limbs are tense and shaking, the teeth are closed, and the mouth is foaming. If the fever lasts too long, it can cause brain hypoxia and brain cell damage. Therefore, it is necessary to take a warm bath or reduce the amount of clothing worn to quickly lower the body surface temperature when the fever is present, and to cooperate with medication to avoid chills and shaking of the extremities and convulsions.