Miliaria (Prickly Heat)

Miliaria (prickly heat/heat rash) is sweat-retention eruption in hot humid weather, with subtypes: crystallina (superficial vesicles), rubra (prickly red papules), profunda (deep papules), pustulosa. Treatment: keep cool/dry environment; light breathable clothing; cool showers; emollients; topical corticosteroids for itching; oral antihistamines; avoid tight/occlusive clothing/occlusion; treat secondary infection; avoid heavy oils/ointments; follow-up dermatology; distinguish from folliculitis/contact dermatitis.

Common Symptoms

Prickly papules/vesicles/pustules; trunk/neck/folds; hot humid weather

Causes and Pathogenesis

Eccrine duct obstruction/rupture causes sweat extravasation and inflammation.

Treatment

Cool/dry; light clothing; emollients; topical steroids/antihistamines

Preventive Measures

Cool environment; breathable clothing; maintain hydration.

Department to Visit

It is recommended to visit the Dermatology department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.