LYCOS RETRIEVER 
Dermatitis: Seborrheic Dermatitis
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Seborrheic dermatitis is a scaling disorder of the face, ears and scalp which is characterized by waxing and waning of symptoms. Scale is noted by its yellow and greasy character. Inflammation is thought to be due to an allergic reaction to a yeast (Pityrosporum orbiculare) which colonizes affected individuals. Areas such as the abdomen, under arms, breasts, groin and buttocks can ... be affected. Those patients with oily skin or hair are more likely to contract seborrheic dermatitis.
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Seborrheic dermatitis is usually associated with red and flaking patches of skin. It is often found on the scalp ( dandruff ), as well as the nose, eyebrows, ears, and chest where hair follicles occur. Seborrheic dermatitis may be associated with an unusual immune reaction to a fungal infection. It can occur in healthy infants, children and adults, as well as patients with compromised immune systems. Infections, dry weather, oily skin, stress and other factors can make seborrheic dermatitis worse.
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Seborrheic dermatitis usually begins gradually, causing dry or greasy scaling of the scalp (dandruff), sometimes with itching but without hair loss. In more severe cases, yellowish to reddish scaly pimples appear along the hairline, behind the ears, in the ear canal, on the eyebrows, on the bridge of the nose, around the nose, on the chest, and on the upper back. In infants younger than 1 month of age, seborrheic dermatitis may produce a thick, yellow, crusted scalp rash (cradle cap) and sometimes yellow scaling behind the ears and red pimples on the face. Frequently, a stubborn diaper rash accompanies the scalp rash. Older children and adults may develop a thick, tenacious, scaly rash with large flakes of skin.
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Seborrheic dermatitis is a common disorder for which curative treatment is difficult. Seborrheic dermatitis is a common skin disorder that has several treatment options. This condition is a red, scaly, itchy rash most commonly seen on the scalp, sides of the nose, eyebrows, eyelids, skin behind the ears, and middle of the chest. Other areas, such as the navel (belly button), buttocks, skin folds under the arms, axillary regions, breasts, and groin, may ... be involved.
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A severe, explosive onset of seborrheic dermatitis may be a marker for HIV infection, regardless of age. It may appear as a butterfly rash, similar to the acute facial eruption associated with systemic lupus erythematosus. The dermatitis appears early in persons with AIDS, affects 25-50% of persons with AIDS, and has greater involvement and greater activity in those with diminished T-cell function. The dermatitis may be treated with topical preparations, but if severe, treatment with 400 mg of oral ketoconazole daily for 2 weeks may be necessary.
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Seborrheic dermatitis affects the scalp, central face, and anterior chest. In adolescents and adults, it often presents as scalp scaling (dandruff). Seborrheic dermatitis ... may cause mild to marked erythema of the nasolabial fold, often with scaling. Stress can cause flare-ups. The scales are greasy, not dry, as commonly thought. An uncommon generalized form in infants may be linked to immunodeficiencies.
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Seborrheic Dermatitis