Yes you can cure that using ozone, but i think it's a long road from what I've heard. I know someone who did sauna's for a year or so and thought it was gone, but after a few months it came back. It's the same with athletes foot for me. I can treat it a few times and it seems like it's gone, but a few months later it comes back. So I just do it once a month and never have any problems. That's what I'd say for you probably. Keep doing a maintenance program and you won't have any symptoms I beat.