I had a problem with my big toenail separating from the nail bed for years. I thought it was a fungus and treated it with all the OTC drugs for such. Nothing helped. Even a dermatologist said that the toenail was probably permanently that way. One day, though, I decided to try some "Outgro" which is meant for ingrown toenails. I painted some up under the toenail and all around. After about a week I was amazed and surprised to find that my toenail was starting to grow out attached to the nail bed for a change! I haven't had any more problems with that toe until the last few weeks when I stubbed my toe and the toenail lifted again. I need to get that Outgro out again and fix that toe!
I had a Dr tell me the only way to get rid of fungus for good was to have the nail removed, so that's what he did. It was one of the most painful things I have ever experienced. My advice...DON'T go that route!