it did not make things worse at least [SEP] i was using this in tandem with an antifungal cream prescribed by my doctor however the antifungal was causing the distressing side effect of intense itching i stopped its use and only used this soap the tinea versicolor seems to have cleared up but i do not know if it was from the antifungal or from this soap i plan to continue to use this soap in hopes of preventing more tv in the future i have been using it for weeks past the antifungal and the tv has not come back yet some users complained of a strong sulfur smell and i think the smell goes away after you rinse it off