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Seborrheic dermatitis is thought to be due to a combination of an over production of skin oil and irritation from a yeast called malessizia. Seborrheic dermatitis appears to run in families. Stress, fatigue, weather extremes, oily skin, infrequent...
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The cause of seborrheic dermatitis is unclear, though it is has been linked to genetic or environmental factors. Pityrosporum ovale , a species of yeast normally found in hair follicles, has been proposed as one possible causative factor. A high f...
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Diagnosis is made on visual inspection of the rash.
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Dandruff is easy to diagnose. The condition is characterized by the appearance of white flakes on the hair or on the shoulders and collar. People with oily hair tend to have dandruff more often. Dandruff usually does not require medical treatment....
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