Topical steroids are anti-inflammatory creams or ointments available on prescription which may clear the dermatitis and reduce irritation. The stronger products are applied to the patches just once or twice daily for about 15 days. They are repeated from time to time. Mild ones such as hydrocortisone are safe for daily use if necessary. Oral or topical antibiotics.
Antibiotics are important if the dermatitis is weeping, sticky or crusted.
Sometimes nummular dermatitis clears completely on oral antibiotics, only to recur when they are discontinued. Antihistamine pills may reduce the itching, and are particularly helpful at night-time. They do not clear the dermatitis. Newer non-sedating antihistamines appear less useful for this condition, possibly because part of the effect of the conventional type is due to making the person sleepy. Ultraviolet light treatment several times weekly can help.