Having heat rash can be regulated through general treatment, topical medication, oral medication and other measures. 1. General treatment: First of all, we should pay attention to ventilation, heat dissipation, choose loose and comfortable clothes, rinse with flowing water more often, keep the skin clean, dry and hygienic. 2. Topical medication: You can use prickly heat powder, glycerite lotion, ichthyol glycerite lotion, etc. If there is secondary infection, you can use erythromycin ointment and mupirocin ointment. 3. Oral medication: if the itching is serious, you can take loratadine, chlorpheniramine and other drugs; if the prickly heat is infected, you can take cefadroxil tablets, amoxicillin capsules and other antibiotics. Heat rash is recommended to actively to the regular medical institutions, drugs need to be used under the guidance of a professional doctor, to avoid blind self-medication in order to avoid adverse consequences.