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Written by Amanda Wattson, MD
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Monday, 12 October 2009 |
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Seborrheric dermatitis is a chronic, inflamed redness and scaling of the skin. It can involve the scalp and face.
When this condition occurs in infants, it is sometimes called cradle cap. In adults, seborrheic dermatitis of the scalp is called dandruff.
What is going on in the body?
The cause of seborrheic dermatitis is not known. The skin of the scalp, and sometimes the face, becomes inflammed and flakes off.
What are the causes and risks of the condition?
The cause of seborrheic dermatitis is unknown. It tends to run in families. Some individuals have an overgrowth of yeast organisms that is linked with this condition. Those with neurologic disorders, immunodeficiency disorders such as HIV, and extended hospital stays can have severe cases of seborrheic dermatitis.
What are the treatments for the condition?
Treatments for seborrheic dermatitis include:
- shampoos containing special substances such as selenium sulfide, zinc pyrithione, tar, or ketoconazole
- topical corticosteroid lotions
- ketoconazole cream
- sulfur and salicylic acid mixtures
What are the side effects of the treatments?
Medicated shampoos can dry the hair. Sometimes they can irritate the scalp. Long-term use of topical corticosteroids can thin the skin. A rash may also occur.
What happens after treatment for the condition?
Long-term treatment is often needed to control episodes of seborrheic dermatitis.
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