“Coin-shaped eczema” is a common term for nummular eczema , also known as discoid eczema or nummular dermatitis.
Nummular eczema is a chronic inflammatory skin condition characterized by round or oval patches on the skin that can be itchy, dry, and scaly. These patches, or lesions, get their name from the Latin word “nummular”, meaning “resembling coins”, as they are typically round or oval-shaped, like coins.
Nummular eczema presents as coin-shaped or oval patches on the skin, ranging from 1 to 10 cm in size. These patches can be intensely itchy, particularly at night, and may be dry, scaly, or flaky. They can appear red, pinkish, or brownish depending on skin tone. Some lesions may ooze a clear fluid or develop a yellowish crust, especially if infected. A burning or stinging sensation can also be experienced. The condition most commonly affects the legs, arms, hands, or torso.
While the exact cause is unknown, certain factors are associated with nummular eczema. These include extremely dry skin, skin injuries, and allergies. Certain medications, stress, dry or cold weather, frequent hot baths with drying soaps, poor blood circulation, heavy alcohol consumption, and contact with irritating fabrics can also play a role.
Nummular eczema is not contagious but can be confused with other skin conditions like ringworm or psoriasis.
Treatment focuses on symptom relief, reducing inflammation, and preventing flare-ups. Key approaches include regular moisturization with fragrance-free products, using topical corticosteroids to reduce inflammation and itching, and avoiding known triggers. Antihistamines can help with itching that disrupts sleep, and antibiotics may be needed for bacterial infections. For severe cases, phototherapy or wet wrap therapy might be recommended.
It is advisable to consult a healthcare provider, such as a dermatologist, for a proper diagnosis and personalized treatment plan for suspected nummular eczema.
What causes coin shaped eczema?
Extremely dry skin is dehydrated skin
Researchers believe that skin dryness plays a role in causing nummular eczema. You can develop excessively dry skin during winter when the humidity in the air drops or when taking a medication that can dry out your skin.
What eczema looks like coins?
Thanks for asking. Nummular eczema. Nummular eczema is a dermatitis (skin inflammation) in which itchy, coin-shaped spots or patches appear on the skin. The word nummular is Latin for “resembling coins.”
How do you treat coin dermatitis?
Taking antihistamines to relieve itching and discomfort. applying medicated lotions or skin ointments, such as corticosteroids. getting ultraviolet light treatment for severe itching. hydrating skin with a non-scented moisturizer after showering.
Is nummular eczema an autoimmune?
Nummular eczema is not considered an autoimmune condition. Rather, it’s a type of eczema, the exact cause of which is unknown. Triggers include dry air, stress, skin injury, and infection.