Q&A: What causes heat rash?

As sweat evaporates off the skin, it cools our bodies under hot conditions. When this process goes awry, heat rash can develop.

Causes of Summertime Rashes

Heat Rash: When Should I See a Doctor?

Skin Rashes & Conditions

Oh, your newborn who should have never been exposed to the sun at her age got a heat rash? SHOCKER! : r/TurtleCreekLane

More Than Skin Deep: Common Skin Issues You Need To Know

Rashes On Baby's Neck - Reasons & Treatment

Rashes After Fever In Toddlers: Causes & Tips To Manage It

What Is Heat Rash + How To Treat It and Prevent It, According To a Dermatologist

Skin Rashes & Conditions

Florida heat causes my dermatitis to flare up something awful! : r/florida

Eczema in Black Skin: Symptoms, Diagnosis, Treatment

Why do I have a circular rash on my breast? - Quora

Does anybody know what these are? They hurt when touched and I didn't even realise I had them until earlier today. Is this serious? : r/bigboobproblems

Does anybody know what these are? They hurt when touched and I

Rash After Breast Augmentation

This Woman's Small Rash Turned Out to Be a Rare Form of Breast