Toenail fungus, also called onychomycosis, is a common fungal infection of your toenail. The most noticeable symptom is a white, brown, or yellow discoloration of one or more of your toenails. It may spread and cause the nails to thicken or crack. The big problem with these conditions are the dangerous medications that can cause serious side-effects and liver problems. Here is a simple remedy to help you save time and money. Dr. Mandell