In summer, babies with heat rash can be relieved by general treatment, topical medication and oral medication. 1. General treatment: After your baby develops heat rash, you need to keep the lesion area cool and dry, and you can use a fan or air conditioner to cool down the body. You can use a fan or air conditioner to cool down the body. Also, bathe in warm water every day and wear loose, breathable cotton clothing. 2. Topical medications: After the baby has prickly heat, you can use glycerin lotion to apply, which can stop itching and astringent effect. If necessary, you can choose hydrocortisone or tretinoin and other glucocorticosteroid treatment, can reduce itching and speed up the inflammation subside. 3. oral medication: for summer baby body heat rash phenomenon, in the itching obvious, can add oral loratadine, cetirizine and other antihistamine treatment. Pus rash infection is more serious, you can choose oral amoxicillin, cefixime and other antibiotics treatment. It is recommended to use medication under the guidance of a doctor, not blindly self-medication, in order to avoid adverse effects.