The skin condition discoid eczema, also known as nummular eczema, can occur at any age and can affect men and women. The rash lesions look like coins, are itchy and may resemble lesions caused by ringworm infection. The causes of discoid eczema are unknown, but it may be triggered by dry skin or an injury such as a bug bite, according to the New Zealand Dermatological Society. The first treatment is to protect the skin from injury, but once the condition develops, there are some other remedies for this condition.
Emollients
A patient with discoid eczema can use emollients or moisturizers to relieve discomfort and dryness. According to the New Zealand Dermatological Society, these oils and creams can be used on non-affected skin to reduce the risk of discoid eczema from developing elsewhere. These moisturizers can be applied after a bath or shower to protect the skin by reducing the loss of water, as noted on the National Health Service website.
Steroids
Topical steroids can be used on the eczema rash to calm the inflammation of the skin, according to the New Zealand Dermatological Society. The stronger steroid creams or ointments should be used for a few weeks at a time. As noted on the National Health Service website, weaker steroid creams are not typically effective for this type of eczema. Systemic steroids can also be used in patients with severe or stubborn eczema, but due to the side effects of these steroids, this medication should only be used for a few weeks at a time.
Antibiotics
Sometimes discoid eczema becomes secondarily infected with bacteria after scratching. This causes the lesions to become crusted over, according to the New Zealand Dermatological Society. Patients may need to take antibiotics to clear up the infection. Sometimes, topical antibiotic ointment may be helpful. For other patients, oral antibiotics may be used, as noted on the National Health Service website.
Antihistamines
Oral antihistamine medications can sometimes be used to manage the itching of the skin associated with discoid eczema. According to the National Health Service website, some patients may need some relief from the itching during the night. Oral antihistamine may help.
Phototherapy
For some patients with stubborn discoid eczema, phototherapy treatments may be helpful in clearing up the rash, according to the New Zealand Dermatological Society. Ultraviolet light therapy can be given several times a week, but it may take more time to control the rash.
