Level 1: What is prickly heat? Prickly heat, also known as sweat rash, refers to a skin inflammation caused by the obstruction of the sweat gland duct openings. Babies are prone to prickly heat because their sweat glands are not fully developed. It usually appears as small red particles or blisters, mostly distributed on the head, neck, chest, armpits, etc. Level 2: How to prevent prickly heat in your baby 1. Keep clean and dry: bathe and change clothes frequently to avoid excessive sweating. 2. Pay attention to the ambient temperature: maintain suitable indoor temperature and humidity. 3. Wear breathable clothes: Choose cotton or clothes with good breathability. 4. Avoid using greasy and heavy skin care products and cosmetics. 5. Give regularly