Heat rash can be treated by lowering the skin temperature, keeping the skin dry and giving symptomatic treatment. Generally, by lowering the skin temperature and keeping the skin dry, the prickly heat will subside and the lesions will return to normal on their own. For more serious lesions, such as itching or secondary infection, symptomatic treatment can be given according to the condition. If prickly heat itching is obvious, you can give cool, itch-relieving, astringent lotion or powder for topical application, such as glycerine lotion, etc.; you can also take oral antihistamine medication, such as loratadine, etc. If the symptoms are severe, you can follow the doctor’s instructions. When the symptoms are severe, topical hormone cream can be used as prescribed by the doctor to promote the regression of skin lesions. For those with secondary bacterial infection at the skin lesions, topical or oral antibiotic treatment can be considered under the guidance of the doctor. If prickly heat is ineffective after conventional treatment, you should consult a doctor for standardized treatment under the guidance of a doctor, and be careful not to self-medicate to avoid delays in treatment.