Heat rash is an uncomfortable skin condition that commonly affects adults and children during hot or humid weather. This slideshow offers photos of heat rash, useful tips on treatments and prevention, and information on symptoms that could signal a larger health issue.
1 of 8 What is heat rash?
Heat rash, also known as miliaria, is a skin condition that can affect people in hot or humid weather conditions. Heat rash occurs when the skin pores become blocked and sweat is unable to escape from the body. This is usually caused by friction on the surface of the skin, such as between the thighs or under the arms.