<unk>  <unk>  is a skin condition that appears with red patches evolving into "target lesions", typically on both hands. It is a type of erythema possibly mediated by deposition of immune complexes (mostly IgM-bound complexes) 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. The disorder has various forms or presentations, which its name reflects (multiforme, "multiform", from multi- + formis). Target lesions are a typical manifestation. Two types, one mild to moderate and one severe, are recognized<unk>  minor and<unk>  major).<unk>  was first described by von Hebra in 1860.
Erythema multiforme
Serum sickness
Streptococcal intertrigo
Heat urticaria
Urticarial erythema multiforme
Cold urticaria
Blister beetle dermatitis
Cutaneous larva migrans