Remember, the normal nail will have to grow the infected nail off the body. If the treatment is missed, for even one dose, the nail that grew that day may not be resistant to the fungus and the fungus can jump from the infected nail that is still present into the healthy (but not resistant) nail. If that happens, infected nail will be seen at the base in a few months (when it has grown out enough to be seen) and the treatment will have to be continued until THAT infected nail tissue is grown off the body.
Remember, the normal nail will have to grow the infected nail off the body. If the treatment is missed, for even one dose, the nail that grew that day may not be resistant to the fungus and the fungus can jump from the infected nail that is still present into the healthy (but not resistant) nail. If that happens, infected nail will be seen at the base in a few months (when it has grown out enough to be seen) and the treatment will have to be continued until THAT infected nail tissue is grown off the body.