Is it simply heat rash, or could it be a more persistent skin condition like eczema? Learn how to spot the difference.

The rash itself may include painful, fluid-filled blisters. 5. Heat Rash Heat rash, or miliaria, develops when your sweat glands and ducts become clogged. That blockage causes sweat to build up ...

If you love the outdoors and recreational activities, heat rash ... as a scaly red rash or blistering, and usually appears in the creases and bends of elbows and knees, hands, feet and scalp.