Anyone who's ever run a tough, hilly race or long run more than a few times, especially on trails, can probably guess what "jogger's toe" refers to. The black, bruised appearance of one of your toenails after it takes a beating during a run is accepted by some runners as an integral part of running, but when you have a black toenail, running becomes difficult, and if left untreated, knowing how to treat black toenail at home will be no help, as you will require more drastic