This video tells us about a hypersensitive response to drugs called erythema multiforme. Video tells us histology and location-based infection of the skin. Causative agents and treatments are also discussed. TIMELINE: 0:01 Introduction 0:34 Most common infectious agent? 0:58 Causative agents 2:09 IgM involvement 2:30 It affects palms and foot 3:03 Erythematous (border,ring,centre) 3:48 Treatment 4:24 End