Heat rash is serious, patients can avoid the onset of the disease by improving the working or living environment, should also pay attention to keep the skin clean and dry, in addition to the use of drugs for treatment. Prickly heat is a kind of disease that occurs in summer or hot environment, the disease is related to the high temperature under the sweat is not easy to evaporate, sweat stagnation in the sweat ducts discharge difficulties, treatment, should be out of the high temperature stuffy environment, reduce sweating, the patient can be in the local topical use of glycerine lotion, prickly heat powder and other medications, if the local growth of a large number of prickly heat, but also can be applied to hydrocortisone cream to relieve symptoms. Patients with prickly heat should avoid scratching the affected area to avoid localized skin breakage and infection; for patients with severe localized itching, drugs such as oral loratadine can be taken to relieve the itching; in addition, if localized infection occurs, drugs such as topical mupirocin ointment can be applied to prevent infection. If prickly heat is diagnosed, please follow the doctor’s instructions for treatment.