- Contact dermatitis
- an eczematous eruption secondary to
local exposure to a primary irritant or to an acquired allergic response
to a sensitizing substance. The lesions can involve erythma, edema,
papules, vesicles, oozing, and have sharply demarcated borders.
- Photo contact dermatitis
- an eczematous inflammatory
eruption following exposure to a primary irritant and light. It is a
type of delayed hypersensitivity. One example of this is seen in some
sensitive individuals who use sunscreens that include PABA.
- Infective dermatitis
- a secondary bacterial infection that
can occur in AD, nummular eczema, or seborrheic dermatitis. It extends
out from the originally affected area and includes well-circumscribed
eczematous plaques with vesicles, pustules, exudate and/or crusting on
an erythematous base.
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