Miliaria: Difference between revisions
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==Background== | ==Background== | ||
*Also known as ''lichen tropicus, miliaria rubra, prickly heat'' | *Also known as ''heat rash, lichen tropicus, miliaria rubra, prickly heat'' | ||
===Pathophysiology=== | ===Pathophysiology=== | ||
Revision as of 10:46, 15 February 2017
Background
- Also known as heat rash, lichen tropicus, miliaria rubra, prickly heat
Pathophysiology
- Acute inflammation of sweat ducts caused by blockage of pores by macerated skin
- Ducts become dilated under pressure and ultimately rupture
- Often seen in areas of friction
- This produces superficial vesicles in malpighian layer of skin on a red base
- May progress to miliaria profunda (white papules) if duct ruptures a second time
Clinical Features
- Pruritic, maculopapular, erythematous rash over normally clothed areas of body
Differential Diagnosis
Environmental heat diagnoses
Evaluation
- Clinical diagnosis
Management
- Antihistamines
- Dicloxacillin or erythromycin if appears superinfected
Disposition
- Outpatient