My husband has been afflicted by toenail fungus for decades. We tried every doctor-recommended remedy, short of an oral, and none worked… vinegar soaks, Vick’s VaporRub, etc. The reason they didn’t work is because of reinfection through socks (even though he wore fresh ones daily) and, more importantly, shoes.
He is now 90 years old and house bound. I recently noticed no sign of the fungus that has been part of his life for so long. What changed? He now wears those washable mesh shoes, not practical if he were going outside in winter nor for business were he still working. There are various brands out there. He wears NoSox. The shoes are periodically washed in the washing machine but the fungus can’t persist in them because the mesh allows air and light in and keeps moisture evaporated.
My suggestion to you is to wear washable, open sandals or mesh shoes. Change socks daily. And shower daily, washing the feet with an anti-fungal soap such as Donner’s with tea tree oil.
It’s a tough situation to fix. But you have to ditch all your closed shoes, sneakers included, that have been harboring and reintroducing the fungus. I wish you luck… and persistence. And hope you can do it before you hit 90!