What Is Nummular Eczema?

Nummular eczema (also known discoid eczema, nummular dermatitis, and nummular prurigo) is a chronic relapsing inflammatory skin condition characterized by coin-shaped (nummular) red, scaly, itchy patches that appear on the skin.

Synonyms:

- Atopic eczema

- Constitutional eczema

- Endogenous eczema

- Flexural eczema

- Neurodermatitis

-Prurigo Besnier

Symptoms:

- Skin rash of round or oval red patches ranging in size from ¼ inch to 3 inches in diameter

- Itching, burning, and dryness of affected skin

- Crusting or oozing of the skin surface

- Lesions may come and go, or may merge together to form larger patches

- May appear anywhere on body but most common in shins, lower arms, and torso

Causes:

- Exact cause is unknown, but may be related to eczema or atopic dermatitis.

- Triggered by allergies, irritants, or medications

- Dry skin

- Changes in climate and weather

- Bacterial infections

- Stress

- Diabetes

- Genetics

Treatment:

- Topical corticosteroids to reduce itching and inflammation

- Calcineurin inhibitors such as tacrolimus (Protopic) or pimecrolimus (Elidel)

- Antihistamines and oral corticosteroids to relieve itching

- Wet wraps

- Light therapy

- Systemic immunomodulators such as methotrexate or cyclosporine

- Moisturizers to keep skin hydrated

- Avoid known triggers and irritants

Prevention:

- Maintain a healthy skin barrier by using gentle cleansers and moisturizers.

- Avoid prolonged sun exposure and take sun protection measures.

- Identify and manage triggers such as allergens, irritants, and stress.