Then stop using toenail polish!
Then stop using toenail polish!
That's not yellow toenail polish.
I cured mine with Ciclopirox (topical). There are also nasty pills you can take for like a year, and some other topical stuff you can get from abroad. But the cure rates are not good, and you may in fact be doomed.
Have you tried potassium permanganate?
My former mother-in-law bought listerine by the handle, supposedly to soak her toes in. I don't believe it did any good, but she may have just been drinking it.