Miliaria crystallina is characterized by asymptomatic, small, clear, delicate, translucent vesicles with the appearance of “water droplets” on the skin. The vesicles lack surrounding erythema or ... Miliaria, also known as sweat/heat rash or prickly heat is a skin condition caused by blocked or inflamed sweat ducts.

Understanding the Context

Heat rash is common especially in hot, humid or tropical climates. Fox-Fordyce disease, Apocrine miliaria, Apocrine duct occlusion, Sweat retention disease. Authoritative facts from DermNet New Zealand. Miliaria is a common skin disease caused by blockage and/or inflammation of eccrine sweat ducts.

Key Insights

Miliaria is frequently seen in hot, humid, or tropical climates, in patients in hospital, and in the neonatal period. Miliaria Miliaria affects about 15% of newborn babies in warm climates and is due to blockage (occlusion) of the sweat duct. If the occlusion is superficial, sweat collects just below the stratum corneum (dead cells on the skin surface) forming clear, thin-walled blisters (miliaria cristallina). Miliaria Miliaria refers to sweat rash (prickly heat) due to obstructed sweat glands and perhaps localised hyperproliferation of specific commensal microorganisms such as strains of Staphylococcus epidermidis. It presents with non- follicular superficial papules, vesicles or pustules mainly arising on the trunk.

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