"Erythema" means red-colored. "Multiforme" means different forms.
Erythema multiforme is a skin disorder that causes patches of red, raised skin.
You get red patches that suddenly appear on your palms, soles, arms, legs, and face, and may later spread to the rest of your body
The patches sometimes look like targets
You may also get mouth sores
You usually get better within 2 to 4 weeks
Doctors may have you use medicine to stop the itching
If you get erythema multiforme a lot, your doctor may prescribe an antiviral medicine for you
Erythema multiforme is usually caused by a reaction to:
Erythema multiforme less often is caused by other infections or certain medicine or vaccines.
Rash may go away on its own after several weeks but may keep coming back.
Erythema multiforme gets better without treatment. If your symptoms bother you, doctors may treat you with: