The root cause of the treatment of heat rash on the face of newborns is mainly to strengthen skin care, because the skin is more delicate during the newborn period, it is easy to appear rash after any stimulation, in fact, the root cause is still skin allergy, heat is also a kind of stimulation. The rash caused by hot and humid air is called heat rash, the main treatment is to control the room temperature is not too high, too wet, the temperature control at 24-26 ℃, humidity control at 30%-40% more appropriate, keep the skin clean, dry, generally heat rash will gradually reduce or disappear. However, some children with severe heat rash, after strengthening care still do not reduce, you can also apply topical zinc oxide ointment to the local skin, twice a day, to avoid the drug into the eyes and mouth.