I get thrush all the time, but I haven't linked it to HS. For me it happens whenever I start a steroid inhaler. I've decided the inhalers help too much to stop them, so my doc wrote me a prescription for Nystatin that I am supposed to use four times a day twice a week. There's also this mouthwash called Orithrush G that I really liked, but I've been having a hard time finding it.