Eczema - nummular; Nummular dermatitis
Nummular eczema is an allergy-related disorder in which itchy, coin-shaped spots or patches appear on the skin.
The cause of nummular eczema is unknown, but there usually is a personal or family history of asthma, allergies, atopic dermatitis, or similar disorder. It is relatively uncommon, and most often occurs in elderly men.
Several things may make the condition worse, including
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