Allergic Dermatitis

Allergic dermatitis is eczematous inflammation from type-IV hypersensitivity to contact/airborne allergen, presenting with pruritic erythematous papules/vesicles/lichenification. Treatment: topical corticosteroids (potency by site/severity); emollients; antihistamines for pruritus; cool compresses; identify/avoid allergen (patch testing); systemic steroids for severe acute; treat secondary infection; avoid topical antihistamines/neomycin (common sensitizers); follow-up.

Common Symptoms

Pruritic erythematous papules/vesicles; lichenification; by allergen

Causes and Pathogenesis

Type-IV delayed hypersensitivity causes eczematous dermatitis.

Treatment

Topical steroids; emollients; antihistamines; avoid allergen; patch test

Preventive Measures

Avoid known allergens; moisturize; identify triggers.

Department to Visit

It is recommended to visit the Dermatology/Allergy department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.