Nummular eczema (also known as discoid eczema and nummular dermatitis) appears as coin-shaped spots on the skin that can be painful & difficult to treat. Discoid eczema, also known as nummular or discoid dermatitis, is a long-term skin condition that causes skin to become itchy, reddened, swollen and cracked in. Nummular dermatitis is one of the many forms of dermatitis. it is characterized by round or oval-shaped itchy lesions. The name comes from the Latin word.
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People who get this skin problem often see distinct, coin-shaped nummular or oval sores on their skin. Nummular dermatitis often appears after a skin injury, such as a burn, abrasion from frictionor insect bite. A person may see 1 or many patches. These patches can last for weeks or months. Men get nummular dermatitis more often than women get it. Men often have their first outbreak between 55 and 65 years of age. When women get it, they are usually younger.
They tend to be teenagers or young adults. Patches on the skin tend to begin as a group of tiny, reddish spots and blister-like sores that weep fluid. Then the sores enlarge and grow together to form a coin-shaped patch.
A yellowish crust may develop on the patches if a Staphylococcus aureus staph infection occurs. This may require treatment with an antibiotic. Research also suggests that your risk of getting nummular dermatitis increases if you live in a cold, dry climate or have:. Livingood Award and Lectureship Marion B.
Your body’s largest organ About hair: Not just on your head About nails: More important than you think Questions lots of kids ask about their skin, hair, and nails. Amazing facts about your skin, hair, and nails How do animals protect their skin Skin dictionary Camp Discovery Good Skin Knowledge lesson plans and activities Parent resources Video library Find a dermatologist Why see a board-certified dermatologist? This skin problem often causes coin-shaped rashes on the skin that can itch or burn.
Overview Also called discoid eczema People who get this skin problem often see distinct, coin-shaped nummular or oval sores on their skin. Your dermatologist may refer to this skin condition as: Nummular dermatitis Nummular dermatitis: A patch of nummular dermatitis on a patient’s ankle. Signs and symptoms Patches on the skin tend to begin as a group of tiny, reddish spots and blister-like sores that weep fluid. The patches tend to have these numhlar and symptoms: Range in size from smaller than 1 inch to numilar than 4 inches.
Occur most often on the legs but also occur on the torso middle of the bodyarms, hands, and feet. Be pink, red, or brown and well-defined. These symptoms range from very mild to severe. The itch may be worse at night, disturbing sleep. Become crusty after the blisters leak fluid and, after a long time, become scaly. The skin nhmular the patches often remains clear, but it can be dry and easily irritated. Blisters can form and grow together to create red patches. Who gets and causes Who gets nummular dermatitis?
This skin problem is more common in men than in women.
Men tend to have their first outbreak between 55 and 65 years of age. Women are more likely to get it between the ages of 15 and 25 years. It is rare in children. What causes nummular dermatitis? While the cause is unknown, researchers think that sensitivity plays a role in some cases. A person may be sensitive to: Metals, including nickel and rarely mercury, such as from dental fillings.
Medicines, such as neomycin an antibiotic that you apply to the skin. Research also suggests that your risk of getting nummular dermatitis increases if you live in a cold, dry climate or have: Very dry skin xerosis. Another type of eczema, mainly atopic dermatitis or stasis dermatitis.
Injured your skin insect bite, contact with chemicals, or abrasion. A skin infection caused by bacteria. Taken certain medicines, such as isotretinoin and interferon. Isotretinoin, a prescription medicine sometimes used to treat severe acne, seems to increase the risk for this skin problem. Interferon can cause severe widespread nummular dermatitis.
Diagnosis and treatment How do dermatologists diagnose nummular dermatitis? During the exam, the dermatologist may swab the sores if the doctor thinks you have a skin infection.
If your dermatologist thinks you have an allergy, patch testing skin tests to find allergies may be recommended. Your dermatologist nummular may recommend patch testing if treatment does not fully clear your skin.
An allergy can prevent the skin from clearing. How do dermatologists treat nummular dermatitis? These sores can be stubborn, so seeing a dermatologist for treatment is recommended. Protect your skin from getting scraped, cut, or injured in any other way.
A skin injury can worsen nummular dermatitis. You can do this by taking a minute lukewarm bath or shower once a day. Within 3 minutes of getting out of the water, apply a moisturizer to your still-damp skin.
Nummular dermatitis | American Academy of Dermatology
This helps hydrate dry skin. It also relieves the itch and scaling. Adding bath oil to the water numukar may help. Beware that some oils can irritate your skin. A dermatologist can recommend bath oil nmuular will not irritate your skin. Use medicine as directed by your dermatologist. Medicine prescribed to treat the skin includes corticosteroid ointments and tar creams.
These help reduce inflammation redness and swelling and itch. If numlar bacterial skin infection occurs, your dermatologist will prescribe an antibiotic. An oral by mouth antihistamine that makes you drowsy can help you sleep. If you have a bad case or widespread nummular dermatitis, you may need: Phototherapy treatment with light. Systemic taken by mouth or injected corticosteroids. Bed rest in a cool and moist room.
You can keep the room moist with a humidifier. Outcome With proper treatment, nummular dermatitis can clear completely. Sores on the thighs, legs, and feet often take longer to heal and tend to leave behind darker or lighter spots. Others have these patches for many years. Sometimes the patches go away and then return.
Patches that return after clearing tend to appear in the same place as the first outbreak. ezema
Apply a moisturizer at least once a day. The best time is just after bathing while your skin is damp. A moisturizer helps trap water in the skin. A dermatologist can recommend products that will not irritate your skin. Avoid activities that bother your skin. To avoid numuar, dermatologists recommend using lukewarm water for showers and baths, getting out of the ezema or bath after 20 minutes, and not sitting next to a fire or heater.
Soap can dry the skin. When you heat or air-condition your home, use a humidifier to add moisture to the air. You are less likely to irriate your skin if you wear loose clothing.