Seborrheic dermatitis may be associated with an overgrowth of Malassezia, a yeast fungus that’s naturally present on your skin. Ketoconazole can help treat dandruff by reducing the fungus and ...

Antifungal shampoos, including ketoconazole 2% and selenium sulfide 2.5%, are generally used as a body wash that is lathered on the scalp and affected skin for 5 to 10 minutes daily and then ...