Influence of hair oil on scalp fungal cultures

Abstract

It has been clinically speculated that the use of oil for hair grooming may change detection of fungus on culture; however, the effect of hair oil on fungal cultures remains poorly studied. In this prospective case-controlled study, scalp cultures were collected from twenty-eight pediatric patients with clinically suspected tinea capitis before and after cosmetic hair oil was rubbed into the scalp. Following hair oil application, fifteen of the sixteen originally positive patients tested positive, while one patient that had tested negative prior to hair oil had a positive culture. Our study