Seborrhoeic dermatitis, also known as seborrhoea, is a common, long-term skin disorder.
The cause is unclear but believed to involve a number of genetic and environmental factors. The condition may worsen with stress or during the winter. The Malassezia yeast is believed to play a role. Diagnosis is typically based on the symptoms.
The condition is most common in those around the age of 50 and among those less than three months old. Up to 70% of babies may be affected at some point in time.
In mild cases, a topical antifungal cream or medicated shampoo (such as ketoconazole, selenium sulfide, coal tar, and zinc pyrithione) may be enough to control symptoms.
In more severe cases, you may receive a prescription for a mild corticosteroid medication to calm the inflammation as well. Use topical corticosteroids only as directed—that is, when the seborrheic dermatitis is actively flaring.
In cases where corticosteroids are not appropriate, or when they have been used for a prolonged period, a non-corticosteroid topical medication such as tacrolimus (Protopic) or pimecrolimus (Elidel) may be prescribed. Oral antifungal agents may be used in very severe cases.