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Nummular dermatitis appears as round or oval, coin-shaped patches of irritated skin. The patches are typically red, scaly, crusty, or oozing and range from about one to four centimeters in diameter. They most commonly appear on the arms, legs, torso, and hands.

Common triggers include very dry skin, cold and dry weather, skin injuries such as insect bites or abrasions, contact with irritating substances, stress, and certain medications. Identifying and avoiding personal triggers is an important part of managing the condition.

No. Nummular dermatitis is an inflammatory skin condition, not an infection, so it cannot be spread from person to person. However, scratching can break the skin and allow bacteria to enter, leading to a secondary infection that may require antibiotic treatment.

Diagnosis is typically based on a clinical examination of the characteristic coin-shaped patches and a review of your medical history. In some cases, a physician may recommend a skin biopsy or patch testing to rule out other conditions such as ringworm, psoriasis, or contact dermatitis.

Treatment usually involves topical corticosteroids to reduce inflammation, antihistamines to control itching, and consistent use of moisturizers to restore the skin barrier. In cases with secondary bacterial infection, oral antibiotics may be prescribed. Nonsteroidal topical agents like tacrolimus are also used, especially on sensitive areas.

Without treatment, flares can persist for weeks to months. With appropriate treatment, patches often begin to improve within a few weeks. Some people experience recurrent flares, especially during winter months or after exposure to known triggers. Consistent skin care between flares can help reduce their frequency and severity.

Doctronic uses an AI-guided evaluation to gather detailed information about your symptoms, health history, and skin condition. A licensed physician then reviews your case and develops a personalized treatment plan. The entire process is designed to be fast, thorough, and convenient from any location.

Yes. Doctronic's platform is staffed by licensed physicians whose consultations are reviewed and audited for quality. The service is HIPAA-compliant, protecting your personal health information. Doctronic is available to adults 18 and older in any U.S. state.