shmoel: toenail fungus is notoriously difficult to get rid of. For starters, it takes as long as the nail takes to grow out, which may take months. No overnight cure will help for toenail fungus.
I have found success with vinegar. It’s a cheap, easy way and it’s worth trying before going for something more expensive/invasive.
see my method here:
It will take a few weeks before you see results, but then you will notice the clear growth from the base of the nail. You need to be consistent and keep at it for a few months, until the nail has totally grown out.
google for more details.