Toenail fungus presents an infection that can be very unpleasant to experience. The infection is not pleasant to see and can cause a lot of pain and discomfort. As the toes spend a lot of time in a dark, warm and damp place, fungus can grow fast there. It is important that the infection is treated right away before it gets the chance to spread. Further growth of the fungus could lead to the infection of other nails and even skin.