Nummular Dermatitis

What is Nummular Dermatitis

A pruritic dermatosis, characterized by round to oval (coin-shaped) areas of vesiculation, superficial crusting, and redness. Nummular eczematous dermatitis (nummular eczema or nummular dermatitis) is a name given to a stubborn, itchy rash that forms coin-shaped patches on the skin Number of lesions varies from few to many. The word "nummular" comes from the Latin nummus , meaning coin More often this is a symmetrical pattern in young adults. Not related to atopic dermatitis.

The cause of nummular dermatitis is unknown. Nummular eczema is frequently associated with dry skin. Wool, soaps and frequent bathing (more than once a day) often worsen the condition.

Treatment

Bath oils and emollients are important in the daily management of nummular dermatitis. For stubborn scaly nummular eczema, coal tar can be added by the pharmacist into an ointment. Topical corticosteroids and tar preparations reduce the itch and inflammation. When itch is severe, oral antihistamines can help.