- Miliaria rubra
Miliaria rubra (also known as "Prickly heat" and "Heat rash") is a skin condition that appears as discrete, extremely pruritic, erythematous papulovesicles accompanied by a sensation of prickling, burning, or tingling.:23 Differential Diagnosis should be used to rule out polycythemia vera, which is a rare hematological disorder and appears more often in males that females and generally not before the age of 40. Both disorders share the common denominator of appearing after taking a hot shower.
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