This video tells us about a hypersensitive response to drugs called erythema multiforme. Its characteristic features, presentation, microscopic slides and at the end of video diagnosis and treatments are also discussed. TIMELINE: 0:02 Introduction 0:24 Causes 1:00 Suggestions of dermatologist 1:28 Major causes of erythema multiforme 2:00 Diagnosis 2:17 Treatment 2:25 End