Sweating after the baby’s fever is cool, is due to the body sweating after fever caused by the body’s skin temperature drop. The coldness of the whole body after fever reduction is considered to be caused by excessive sweating after fever reduction, resulting in insufficient circulating blood volume. The cold body needs to take warm measures for the baby, you can give the baby to wear slightly thicker clothing, or cover a thicker quilt, can relieve the symptoms of cold body. At the same time, you need to take some warm water to replenish the water lost in sweat, and if it is still cold, you can use a hot water bag and so on. After the fever subsides, parents should also pay attention to observing the baby’s temperature changes, to prevent the recurrence of fever. If the fever reappears, it is necessary to go to the hospital for examination to understand the cause of the fever, and to treat the primary disease before the fever can be completely treated.