Toenail fungus is a common issue that affects up to 10 percent of American adults. It can be resistant to treatments, but there are home remedies that can banish this fungus forever and prevent it from occurring again in the future. When you have a toenail fungus, the affected nails appear thick and yellow. As the infection continues, the nails can become weak and brittle, resulting in them chipping off and falling away from the nail bed. It is important to start treating a fungal infection as soon as you notice it because early treatment tends to get rid of the fungus faster and it is easier to treat in the early stages.