Miliaria pustulosa. Courtesy O. Dale Collins, MD
Miliaria rubra is a type of miliaria in which there is keratinization of the duct and vesicle formation around it. It is common in the newborn. There is some evidence that Staphylococcus epidermidis overgrows and releases a substance that blocks the eccrine sweat ducts [JAAD 1995;33;729].
Erythematous papules develop in skin that is hot, sweaty and often occluded. In the infant, lesions in the groin, axilla and neck are common. Pustular lesions may be present and this may be called miliaria pustulosa.
Keeping the skin cool and dry is indicated. See also miliaria profunda.
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