A new use for good old Vick's Vaporub: turns out the cough and cold remedy is also good for toenail fungus, according to our friends at What Doctors Don't Tell You. Cut and trim the affected nail, and wash and dry the foot thoroughly. Apply the Vicks Vaporub to the affected area, cover with a bandage or gauze and pop on a pair of socks. Repeat the process every day until the infection is gone.