In miliaria rubra, blocked sweat glands cause small, red skin bumps. In miliaria rubra, the blocked sweat ducts often appear as hundreds of small pink or red bumps, all approximately the same size and shape.
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Heat Rash or Prickly Heat (Miliaria Rubra)  A parent's guide for infants and babies

Picture of Heat Rash or Prickly Heat (Miliaria Rubra): In miliaria rubra, blocked sweat glands cause small, red skin bumps. Divider line
In miliaria rubra, blocked sweat glands cause small, red skin bumps.
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Who's At Risk
Heat rash is common in over-bundled infants in the winter and those who have recently moved to a hot and humid climate.
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Last Modified: 22 Dec 2008
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