Ellen K. Roh MD


Erythema Nodosum

Erythema nodosum (say “air-uh-THEE-muh noh-DOH-sum”) is a condition in which red, painful bumps suddenly appear under the skin. They usually appear on the shins, but they may also appear on the forearms, thighs, and trunk. This condition can be caused by a number of diseases and infections, or it can be caused by…

Phototherapy for Atopic Dermatitis

Phototherapy is the supervised use of ultraviolet (UV) light to treat skin conditions, including atopic dermatitis. Ultraviolet B (UVB), ultraviolet A (UVA), or a combination of UVB and UVA may be used during therapy. During phototherapy, you stand in a booth that contains light tubes that give off UV light. Goggles…

Razor Bumps

What are razor bumps? Razor bumps, or ingrown hairs, are small, irritated bumps on the skin. They happen after you shave, when strands of hair curl back on themselves and grow into the skin. They cause irritation and pimples. They also may cause scarring. How are razor bumps treated? The best way to treat razor bumps is…

Erythema Nodosum

Erythema nodosum (say “air-uh-THEE-muh noh-DOH-sum”) is a condition in which red, painful bumps suddenly appear under the skin. They usually appear on the shins, but they may also appear on the forearms, thighs, and trunk. This condition can be caused by a number of diseases and infections, or it can be caused by…

Atopic Dermatitis (Eczema)

Covers long-lasting skin problem which is also known as eczema or atopic eczema. Looks at symptoms like dry skin, itching, and a red, raised rash. Covers treatments including using moisturizing creams and medicines. Offers prevention tips.