Miliaria

Overview

Heat rash (miliaria) is common during hot, humid weather. It occurs when sweat ducts become blocked, trapping sweat under the skin.

Symptoms

The rash may appear as blisters or red lumps. Heat rash may cause itchiness or a prickly feeling.

Treatments

Heat rash usually goes away on its own. Use of fans and lightweight clothing can help.

Last Updated Jun 13, 2017


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