Toe nail fungus is the result of infection caused by tiny micro-organisms. Also known as Onychomycosis, the fungi grows in the warm and moist fingernails. As the fungi growth increases, it makes the nails hard and brittle and also leads to discoloration. Though toe nail fungus is not painful in the initial stages, it starts hurting later on. Some of the causes of toe nail fungus are a break in the nail, tight-fitting shoes, multiple small cuts in the skin and damp shoes and socks. The fungus causes the toenails to get flaked, brittle and chipped. They also start emitting a bad smell. However, the fungus can be treated at home, using certain home remedies, some of which have been mentioned below.