Atopic dermatitis is a genetically determined eczematous skin disease strongly influenced by environmental conditions called flare factors. Allergic reactions are one such flare factor. These reactions include contact urticaria, allergic contact dermatitis, and late phase reactions. Contact urticaria could induce eczema by eliciting scratching. A late phase reaction may be involved in eczema produced by prolonged epicutaneous applications of antigens in individuals with immediate sensitivity to these antigens. Mechanisms of allergic contact dermatitis might also elicit dermatitis. Environmental allergens may include mold, dust, mite, pollens, foods, danders and bacteria.
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- Atopic dermatitis
- Late phase reaction