Nummular/discoid eczema
scattered, well-defined, coin-shaped and coin-sized plaques of eczema. Discoid eczema is also called nummular dermatitis
The eruption can be precipitated by:
- A localised injury such as scratch, insect bite or thermal burn
- Impetigo or wound infection
- Contact dermatitis
- Dry skin
- Varicose veins (varicose eczema)
Differentials : annular skin eruptions including
- tinea corporis
- plaque psoriasis
Management
- Protect the skin from injury.= irritated by friction, detergents, solvents, other chemicals, or excessive water.
- soap substitutes and moisturising cream
- Avoid allergens
- Topical steroids – twice daily for 2–4 weeks
- Antibiotics
- Oral antihistamines
- Ultraviolet radiation (UV) treatment
