What Is Nummular Eczema?
Nummular eczematous dermatitis, more commonly called nummular eczema or discoid eczema, is a rare type of skin rash characterized by coin-shaped red itchy patches. The term nummular is derived from “nummus,” a Latin word for coin. The condition typically is chronic and can last months or even years. It may intermittently clear and then flare up again. In some people, the disorder can be difficult to treat.
