Erythema multiforme

[Lanell]

Erythema multiforme is an inflammatory skin disorder characterized by patches of red, raised skin that often look like targets and usually are distributed symmetrically over the body.
(See also Introduction to Hypersensitivity Reactions and Inflammatory Skin Disorders.)

Erythema multiforme is usually caused by a reaction to an infection, commonly herpes simplex virus.
Typical symptoms include red patches with purple-gray centers (target lesions) that suddenly appear on the palms and soles, arms and legs, and face and may later spread to the body.
Many people have mouth sores.
The diagnosis is by a doctor