Dr. Amy J. Nopper M.D.

What is seborrheic dermatitis?Seborrheic dermatitis, or seborrhea, is a common skin disease that has no known direct cause. It is characterized by a red, itchy rash on the skin, often on the scalp, with scaly patches that flake off. It looks similar to eczema, psoriasis or an allergic reaction....

Hives is a common skin condition in children. It is characterized by itchy, raised, red and white welts on the skin. The condition is also medically known as urticaria. Hives are not contagious and may last for a few hours or days. However, in some cases, they may last for a few weeks.In this...

What is ringworm?Ringworm is a common fungal infection of the skin. It is scientifically called as tinea corporis, and belongs to the group dermatophytes. Ringworm does not involve worms, as the name suggests. Instead, its name comes from the ring-like red patches that can occur on the arms, legs,...

Molluscum contagiosum is a contagious skin infection, which is mostly seen in children and the elderly. The infection comes with uneven bumps on the skin, which get bigger in size. The bumps are itchy and develop blisters when scratched. Sexually active adults are usually affected by this skin...

IntroductionDermatophytes are fungi that get nutrients from keratin for growth. They usually affect the skin, nails, and hair. The species that commonly invade the keratin are those that belong to the genus Trichophyton, Epidermophyton, and Microsporum. Fungal infections produce ring-like...

The cause or severity of insect bites or stings can be determined by the symptoms. Most bug bite symptoms cause itchy or painful red bumps. Other insect bites can cause welts or blisters. The following are some clues of common insect bites:...