As of 2015 studies suggest that Vicks VapoRub may be effective in treating fungus of the toenails, according to Mayo Clinic. In one study, 56 percent of patients reported partial improvement of signs and symptoms when they used Vicks VapoRub on affected toenails.
To use Vicks VaboRub to treat toenail fungus, apply some on each affected toenail daily, states Mayo Clinic. Trimming and thinning the nails helps reduce pain associated with toenail fungus and also helps any medicine or treatment penetrate deeper into the nails. Applying urea cream and then covering the toenail overnight can help make trimming and thinning an easier process. After waking up, wash off the cream with warm soap and water, and repeat the next night until the nails become soft.
Signs to watch for are darkening in color of the nail and new growth of the nail, says Nail Fungus. The darkening in color is a sign that the Vicks is working. As the nail grows, cut off the older affected regions. Ensure the fungus does not spread to the new growth.
Another home remedy to treat nail fungus is Listerine, claims Nail Fungus. Listerine contains the same ingredients as those in Vicks VapoRub that have an anti-fungal, effect such as thymol and eucalyptus oil.