Heat rash in babies is usually due to the inflammation of sweat glands, which can be dealt with by lowering the temperature, reducing the amount of clothing and using medication. 1. Cooling down: Most babies get heat rash in summer or when the weather is hotter, so you need to lower the ambient temperature, such as turning on the air-conditioner so that the indoor temperature is not too high, or you can also open the windows to keep the ventilation, so that the indoor temperature is more appropriate. 2. Reduce clothing: do not give the baby too much clothing, untie the neckline, so that the baby’s body heat in a timely manner out. 3. Use of medication: Baby heat rash can also be treated with glycerite lotion and zinc oxide ointment. If your baby’s heat rash symptoms are severe or have not improved, it is recommended that you go to the hospital for treatment in a timely manner. All of the above medications should be used under the guidance of a doctor, avoid self-medication.