Here are some directions on using Vinegar to remove nail fungal infections. I would simply use Miracle-Mineral-Supplement activated with ACV the same way these directions say to use just Vinegar.
I know that this does work. I had an ex-boyfriend do the exact same protocol using Hydrogen Peroxide (Dr. Stoll said that would work as well) and it got rid of the infection. The key is that you have to wait for the nail to grow out, which will take at least a month. You'll kill the infection of the nail, but the nail won't heal itself because it's dead. You have to wait for the rest of the healed nail to grow out, and you have to be patient.