Heat rash (Miliaria): Images, Causes, and Treatment - DermNet
2018年2月19日 · Miliaria rubra, the most common form of heat rash, results in red, 2–4 mm, non- follicular papules and papulovesicles. They are very itchy. Background erythema is often present. In children, miliaria involves the trunk and the skin folds of the neck, axilla or groin. In adults, miliaria often affects the upper trunk, scalp, neck and flexures ...
Intertrigo (Rash in body folds): Causes, Images, and More - DermNet
Intertrigo is due to genetic and environmental factors. Flexural skin has a relatively high surface temperature. Moisture from insensible water loss and sweating cannot evaporate due to occlusion. Friction from the movement of adjacent skin results in chafing. Intertrigo occurs more easily in environments that are hot and humid.
Cholinergic Urticaria: Causes, Treatment, and Images - DermNet
Cholinergic urticaria is a common chronic inducible urticaria that is characterised by the presence of short-lived transient hives (itchy bumps) due to stimuli that induce sweating. It typically presents with small, raised 1–4 mm wheals which last for 15–30 minutes. It is also sometimes referred to as cholinergic angioedema urticaria or ...
Grover Disease - Transient Acantholytic Dermatosis: DermNet
The cause of transient acantholytic dermatosis is unknown. Due to the frequent association with skin occlusion, heat, and sweating, one theory suggests Grover disease is due to sweat duct damage and occlusion. Drug-induced transient acantholytic dermatosis may be due to the drug or its metabolites being excreted in the sweat with toxic effects ...
Pustular skin conditions - DermNet
Pustules are smaller than 5–10 mm, and filled with pus, that is, purulent material composed of inflammatory cells (neutrophils). Pus can indicate bacterial, fungal or viral infection. Some pustules are sterile and are due to inflammatory skin disease. This topic provides a differential diagnosis of pustular skin conditions.
Tinea cruris - DermNet
Tinea cruris affects both sexes, with a male predominance (3:1). All ages can develop tinea cruris, adolescents and adults more commonly than children and the elderly. Tinea cruris can affect all races, being particularly common in hot humid tropical climates. Predisposing factors for tinea cruris include: Topical steroid use.
Heat and cold - DermNet
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 …
Blistering skin conditions - DermNet
A blistering disease is a condition in which there are fluid-filled skin lesions. Vesicles are small blisters less than 5 mm in diameter. A bulla is a larger blister. Note that the plural of bulla is bullae. Blisters may break or the roof of the blister may become detached forming an erosion. Exudation of serous fluid forms crust.
Perianal dermatoses
Intertrigo is an inflammatory rash in a skin fold, often due to sweat and friction, an inflammatory dermatosis, or infection. Contact dermatitis of the perianal skin Irritant contact dermatitis. Perianal irritant contact dermatitis can be due to: Faecal soiling resulting from an incompetent anal sphincter; Skin irritants in skin cleansers and ...
Dyshidrotic eczema (Pompholyx, Vesicular Hand Eczema) - DermNet
Dyshidrotic eczema (pompholyx) is a chronic, recurrent condition and appears as small, deep-seated, fluid-filled blisters (vesicles) on the sides of the fingers, hands, and feet. The vesicles are small (1–2mm), often symmetrical, with no associated erythema, and they do not occur elsewhere on the body. Vesicles may coalesce into larger blisters.