Prickly heat on the face of small children usually disappears by treating the skin by cooling and drying it, and in severe cases, medication can be used to relieve the discomfort. Prickly heat, also known as corn rash, occurs in hot and stuffy environments and manifests itself as small blisters or pimples that appear on the skin, some of which are accompanied by tingling or itching. In most cases, prickly heat will disappear soon without medication intervention after cooling and drying the skin, such as using wet cloths or ice packs to ice the lesion area, cooling and ventilating the room, and avoiding scratching with hands. For those with severe symptoms, they can be treated with medications such as glycerin lotion, prickly heat powder and hydrocortisone ointment under the guidance of medical professionals. After improving the skin care situation, if the skin symptoms have not significantly improved, it is recommended to go to a regular hospital in a timely manner, please ask the specialist to diagnose and follow the doctor’s instructions to standardize the use of medication, in order to avoid adverse consequences.