I found the best way to cure nail fungus:
1) start by trimming your nails back and filing
2) pour hydrogen peroxide over the infected area and tiny bubbles will start appearing
3) wait a minute or two for the hydrogen peroxide to start working, then put iodine on the nails and under the nails. The peroxide will pull the iodine under the nails and kill all fungus.
4) after 5 minutes or so wash your feet and nails with antibacterial soap.
Afterwards, my nails never felt good or looked this good. It was almost instantaneous.