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Heat Rash (cont.)

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:

  1. clear (miliaria crystalline) - mildest form, usually the blisters aren't itchy or painful;
  2. red (miliaria rubra) - occurring deeper in the outer skin layer, itchy with red bumps, prickly heat found in infants and adults;
  3. deep (miliaria profunda) - least common form, usually adults after repeated events of heat rash, flesh colored lesions.

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Heat illness may be viewed as a continuum of illnesses relating to the body's inability to cope with heat.

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