Onychomycosis, or toenail fungus, is a common fungal infection. Toenail fungus is typically harmless, but it can be unsightly and painful. To treat toenail fungus, many people use home remedies such as Vicks VapoRub. In this article, we will examine the causes, symptoms, and treatment options for toenail infection and debunk the Vicks toenail fungus myth.