Babies with fever should not sweat because they are small, their brain thermoregulation center is not yet well developed and their body temperature is easily influenced by their surroundings. When the room temperature is too high, the clothes worn are too much or the blanket is too thick, there may be a rise in body temperature. If the child is overly wrapped in a blanket when he or she has a fever, the body temperature may rise rapidly, resulting in dehydration and febrile convulsions. The temperature of the baby’s environment should not be too high when the baby has a fever, and the windows should be opened regularly to keep the indoor air fresh. When a baby has a fever, parents should monitor the baby’s temperature in a timely manner, and according to the specific value of the temperature increase, give symptomatic physical cooling or drug cooling treatment, and also observe the baby’s mental state. If abnormalities are found, go to the hospital in time.