Polymorphic erythematous rash

Polymorpha erythema is an acute self-limiting inflammatory skin disease, often accompanied by mucosal damage, and the rash is polymorphic. Typical damage is target-shaped or iris-shaped damage. It can be caused by a variety of reasons. It can be related to infection with bacteria, viruses (especially herpes simplex virus), enzyme bacteria, and protozoa. It can also be caused by certain drugs, such as sulfa, bartos, salicylate, and biological products. Causes illness, and others are associated with cold.