Diseases

Nummular Eczema

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Nummular eczema, also known as nummular dermatitis or discoid eczema, is a chronic condition that causes coin-shaped spots to develop on the skin. These spots are often itchy and well-defined. They may ooze clear fluid or become dry and crusty.

SYMPTOMS

The most common and noticeable symptom of nummular eczema is a patch of coin-shaped lesions on the body. The lesions frequently develop on the arms or legs, but they may eventually spread to the torso and hands. They may be brown, pink, or red. Some lesions may itch and burn. Other lesions may ooze fluid and eventually crust over. The skin around the lesions may be red, scaly, or inflamed.
Call your doctor if you believe you have nummular eczema. If it’s left untreated, a secondary skin infection could develop. Once this occurs, a yellowish crust will form on the infected lesions.

CAUSES

There’s no known cause for nummular eczema. However, many people with nummular eczema have a personal or family history of allergies, asthma, or atopic dermatitis. Atopic dermatitis is a skin condition that causes itchy or scaly rashes. People with nummular eczema also tend to have sensitive skin that gets irritated easily.
The following factors may also contribute to the development of nummular eczema: