Clinical QuickieDermatology
Contact Dermatitis vs Atopic Dermatitis
Distribution and exposure history often separate them.
Contact dermatitis follows exposure
Irritant disease reflects direct barrier injury; allergic contact dermatitis is a delayed hypersensitivity reaction. Borders and exposure pattern can be revealing.
Atopic dermatitis is a chronic barrier disease
Pruritic relapsing eczema with typical age-dependent distribution and atopic history supports the diagnosis.
Treat the barrier and inflammation
Trigger avoidance, emollients, and appropriately selected topical anti-inflammatory therapy are core strategies.
Look for secondary infection or alternate diagnoses
Crusting, weeping, pain, pustules, treatment failure, or atypical distribution should prompt reassessment.
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