Miliaria ProfundaThis is a less common but more severe form that affects the dermis, the deeper layer of skin. It produces firm, flesh-colored bumps that resemble goosebumps. It often occurs after repeated bouts of prickly heat. Complications: Hidradenitis Suppurativa
| Subtype | Key distinguishing feature | Diagnostic confidence | |---------|---------------------------|------------------------| | Miliaria crystallina | Clear, fragile vesicles; no inflammation | High with history of sweating + occlusion | | Miliaria rubra | Erythematous papules, pruritus, anhidrosis in affected area | High | | Apocrine hidrocystoma | Solitary or multiple, translucent blue-black, on face | High (requires biopsy for definitive) | | Secondary impacted duct | Linear, scarred areas with no sweating | Moderate – check for prior radiation/burn | impacted sweat gland
