Allergies & Immune Skin Disorders

Allergic contact dermatitis, drug eruptions, autoimmune skin diseases, urticaria, biologics, patch testing, and immune-related skin conditions.

Allergic contact dermatitis is a T cell-mediated reaction from skin exposure to allergens. Learn diagnosis via patch tes...

Patch testing is the diagnostic gold standard for allergic contact dermatitis. Understand methodology, interpretation cr...

Nickel allergy is the most common contact allergen. Learn sources of exposure, clinical presentation, diagnostic methods...

Fragrance sensitivity affects 1-3% of the population. Understand fragrance components, clinical patterns, patch testing,...

Latex allergy involves Type I IgE-mediated and Type IV cell-mediated reactions. Learn clinical manifestations, risk fact...

Distinguish phototoxic reactions from photoallergic reactions. Understand mechanisms, clinical presentations, diagnostic...

Stevens-Johnson Syndrome is a life-threatening cutaneous drug reaction with high mortality. Learn etiology, pathophysiol...

DRESS syndrome is a life-threatening drug hypersensitivity reaction with fever, rash, and systemic involvement. Learn di...

Fixed drug eruption presents as recurrent lesions at identical sites with drug exposure. Learn recognition, mechanism, d...

Exanthematous drug eruption is the most common drug-induced rash. Learn clinical features, natural history, and manageme...

Acute urticaria is self-limited whealing lasting less than 6 weeks. Understand mast cell pathophysiology, common trigger...

Chronic urticaria persists beyond 6 weeks with significant quality of life impact. Learn autoimmune pathophysiology and ...