<unk> , also known as<unk>  dermatitis" and "napkin dermatitis":80 and commonly known as<unk>  rash (NAE) or nappy rash (UK, AUS), is a generic term applied to skin rashes in the<unk>  area that are caused by various skin disorders and/or<unk> s.
Generic rash or<unk>  (IDD) is characterized by joined patches of erythema and scaling mainly seen on the convex surfaces, with the skin folds spared.<unk>  dermatitis with secondary bacterial or fungal involvement tends to spread to concave surfaces (i.e. skin folds), as well as convex surfaces, and often exhibits a central red, beefy erythema with satellite pustules around the border.
It is usually considered a form of<unk>  contact dermatitis. Despite the word<unk> " in the name, the dermatitis is not due to the<unk>  itself, but to the materials trapped by the<unk>  (usually feces). Allergic contact dermatitis has also been suggested, but there is little evidence for this etiology.
The term<unk>  candidiasis is used when a fungal origin is identified. The distinction is critical, because the treatment (antifungals) is completely different.
Irritant diaper dermatitis
Diaper rash
Vulvar pruritus
Erythroderma
Acroangiodermatitis
Xerotic eczema
Swimmer's itch
Trichostasis spinulosa