Ketoconazole 2% foam was recently approved for the treatment of seborrheic dermatitis in immunocompetent patients 12 years and older. Safety and efficacy of ketoconazole 2% foam treatment for pityrosporum folliculitis has not been established. Prior to the availability of the ketoconazole 2% foam, successful treatment of pityrosporum folliculitis required systemic anti fungal drugs such as ketoconazole, itraconazole and fluconazole. It also responds to oral isotretinoin. Systemic antimycotics are effective but repeated use of these drugs incurs safety concerns including hepatotoxicity and drug-drug interactions. Oral isotretinoin is indicated for severe nodulo-cystic acne and generally is inappropriate as a routine treatment modality for pityrosporum folliculitis. As pityrosporum folliculitis is a non-scarring acneiform condition and can be recurrent, effective and safe, patient initiated topical treatment would be a more appropriate form of therapy.The objective of this study is to demonstrate that ketoconazole 2% foam may be the treatment of choice for pityrosporum folliculitis.