Generally newborn fever rash will be cured within 3-5 days after the onset of the disease, because the occurrence of newborn fever rash and the outside temperature is high, and the parents did not give the newborn baby timely care. The child will develop a rash on the body, and the child will feel very itchy, so that he or she can not help scratching with his or her hands. After adjusting the temperature of the room, drying the sweat and changing to cotton clothes, most of the child’s heat rash will improve within 3-5 days after the intervention. It is important to note that the key to treating heat rashes is to keep the temperature appropriate so that the child does not sweat as much.