Heat Rash Quick Overview
- Heat rash is the generic group name for
a number of skin problems that arise or worsen because of heat exposure or
- Common names for heat
prickly heat or miliaria
- Heat rash is caused by exposure to a hot
- Symptoms of heat rash are the appearance
of a rash and itching.
- Heat rash is diagnosed by looking at
skin changes and a history of exposure to heat.
- Treatments for heat rash includes
cleaning area with water and a mild soap and in more persistent cases a mild
steroid cream (cortisone )
- Heat rash can be prevented by staying in
cool areas and wearing loose clothing.
Heat Rash Types (Miliaria)
Miliaria is the medical term for the heat related skin condition where tiny, pinpoint, pink to clear bumps form over a body area like the face or neck. It is caused when small sweat particles are trapped in the skin
due to blocked pores. This trapping of sweat may cause inflammation and itching around the sweat pores. Miliaria is very common in infants but may also occur in adults. This condition occurs especially after repeated episodes of sweating in a hot, humid environment. Miliaria may look like small clear blisters or like gooseflesh.
There are three types of miliaria:
- Clear (miliaria crystalline): mildest form, usually the blisters
aren't itchy or painful
- Red (miliaria rubra): occurring deeper in the outer skin layer, itchy
with red bumps, prickly heat found in infants and adults;
- Deep (miliaria profunda): least common form, usually adults after
repeated events of heat rash, flesh colored lesions.
Medically Reviewed by a Doctor on 7/2/2015
Must Read Articles Related to Heat Rash
Dermatitis is an inflammation of the skin. Contact dermatitis is a localized rash or irritation of the skin caused by contact with a foreign substance.learn more >>
Dehydration in Adults
Dehydration occurs when the loss of body fluids (mostly water), exceeds the amount that is taken in. Causes of dehydration include fever, vomiting, diarrhea, di...learn more >>
Dehydration in Children
Dehydration in children can result from not drinking enough liquids, vomiting, diarrhea, or combination of these conditions. Causes of dehydration in children i...learn more >>
Patient Comments & Reviews
The eMedicineHealth doctors ask about Heat Rash: