Patches most commonly appear on your legs, arms, torso, and hands. The exact cause of nummular eczema is often unknown, but ...

Case 4. A 72-year-old Italian presented a generalized nummular eczema especially severe over the legs and arms and moderately severe over the abdomen and the buttocks. He was placed on 4 mg.

And nummular eczema is characterized by itchy, round patches that commonly form on the arms and legs. Depending on the type of eczema you have, you may have different triggers that cause flare ups.

Untreated dry skin can develop into a type of eczema called nummular dermatitis, another version of the dry-skin eczema often seen on older people’s legs. This itchy condition can predispose ...