Children with heat rash can be treated with general treatment and medication. 1. General treatment: You can choose breathable cotton clothes for your child; pay attention to indoor ventilation to keep the room at a suitable temperature; use warm water to scrub the body to keep the skin cool and dry, which is helpful in relieving heat rash. 2. Medication: If your child has heat rash with itching, you can use glycerite lotion or zinc oxide ointment; if the itching is serious, you can take antihistamine medication to relieve itching, such as cetirizine. Parents are advised to bring their children to the hospital in a timely manner, follow the doctor’s instructions for treatment, do not take medication without authorization, in order to avoid adverse consequences.