Heat rash, also known as corn rash, is the most common form of heat rash in children, and can be treated by general treatment and medication. 1. General treatment: Ventilate often to avoid a hot and humid environment; strengthen hygiene management to keep the affected area clean and dry; wear loose and comfortable clothes to reduce friction on the affected area. You can also use ice packs or cold water-soaked towels to relieve itching, pain and other symptoms, it should be noted that you should avoid prolonged cold compresses to prevent frostbite. 2. Medication: In addition to the general treatment mentioned above, you can also apply glycerite lotion, prickly heat powder and other medications under the guidance of a doctor; if there are adverse reactions such as tingling, itching and other adverse reactions during the use of medication, you should stop the medication and wash it in time, and seek medical attention at the earliest possible time. When prickly heat itching is serious, oral antihistamine drugs such as loratadine can be taken as prescribed by the doctor. Parents are advised to bring their children with prickly heat to the dermatology department of regular hospitals and follow the doctor’s instructions to use reasonable medication for treatment.