Experts believe seborrheic dermatitis may relate to an overgrowth of Malassezia yeast on the scalp. Shampoos with antifungal agents like ketoconazole, selenium sulfide, and zinc pyrithione can help.

This powerful antifungal agent works by reducing the presence of Malassezia, a fungus that thrives on the scalp and is a major cause of dandruff. Selenium sulfide helps to control the overgrowth ...

and budding yeast forms and spores in the follicle. Culture is not usually obtained and, as in all Malassezia dermatoses, would require a lipid-containing medium. The species isolated from ...