06/05/2026
Your kidâs skin has no sweat glands yet â not really. Theyâre there, but theyâre immature. When heat and humidity hit, sweat gets trapped under the skin instead of evaporating. Thatâs heat rash.
Youâll see tiny red bumps or clear blisters â usually on the neck, chest, armpits, or anywhere clothes fit tight. It looks alarming. Itâs not.
Hereâs what actually helps:
Move them somewhere cool. Loose, breathable clothes. Let the skin air out. Skip the heavy creams and lotions â they make it worse by blocking the pores even more.
The science bit: Sweat ducts in young kids are narrower than in adults. Thatâs why babies and toddlers get this so much more than older kids. Their bodies just arenât efficient at cooling down yet.
It usually clears up on its own within a few days once theyâre out of the heat.
When to call your provider:
â The rash is spreading fast
â Your child has a fever
â The skin looks swollen, warm to the touch, or has pus
Save this for summer and share with a friend with outdoor kids!