Prickly heat, also known as heat rash, can be treated by indoor temperature regulation, localized ice packs, and medication interventions so as to alleviate the symptoms. 1. Indoor temperature regulation: Patients need to keep the poor area cool and dry, and can use fans or air conditioners to keep the indoor temperature at a suitable temperature to avoid the emergence or aggravation of prickly heat due to excessively hot weather. 2. Localized ice packs: After the appearance of prickly heat, patients can use ice packs wrapped in towels to apply ice packs to the area of the lesions, which can reduce the inflammatory reaction by local cooling. 3. Pharmacological intervention: topical medication is based on the principle of cooling, astringent and anti-itching, and can be used externally with glycerin lotion and prickly heat powder, and 2% ichthyol glycerin lotion and Huanglian puff powder can be used for pus rash. If necessary, increase oral loratadine, cetirizine and other antihistamines to relieve itching symptoms. It is recommended to use medication under the guidance of a doctor, not blindly self-medication, in order to avoid adverse effects.