Prickly heat in infants and young children is mainly caused by high surrounding temperatures and high humidity, and excessive sweating that does not evaporate easily. Prickly heat is a physical skin disease that can often subside on its own when the temperature drops, so no special treatment is needed. If the rash is large and accompanied by some discomfort, you can go to the hospital and be treated with certain topical medications. Treatment may include topical application of cooling powder, such as prickly heat powder, or a cool anti-itch lotion, such as mint-flavored glycopyrrolate lotion and ichthyol glycopyrrolate lotion, which are effective. The room should be ventilated, the ambient temperature should not be too high, should not be too humid, clothes should wear loose cotton clothes, often can effectively prevent the occurrence of prickly heat.