Yes you can use Coconut Oil to kill off fungus including foot fungus, toenail fungus and any other fungus that appears on your body.
Just apply the coconut oil to the fungus daily and after a week or so the coconut oil should kill off the fungus and keep it away.
Coconut Oil contains lauric acid and caprylic acid which disrupts the Fungal Cells which eventually kills the Fungal Cells.
You can also soak your feet in Apple Cider Vinegar and the Apple Cider Vinegar will kill off fungus as well and help soothe your feet and skin.