Erythema multiforme is a skin condition of unknown cause possibly mediated by deposition of immune complex (mostly IgM) in the superficial microvasculature of the skin and oral mucous membrane that usually follows an infection or drug exposure. It is an uncommon disorder with peak incidence in the second and third decades of life.
This page contains content from the copyrighted Wikipedia article "Erythema multiforme"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.