I'm wondering if the fungus is on the tips of your thumbs and if your nails are infected too. I'd suggest soaking your thumbs in Apple Cider Vinegar a couple of times a day. If it feels too strong you can dilute it with warm water, about half and half.
If your thumb nails are discolored and you notice the fungus has gone deep you might want to try using half Apple Cider Vinegar and half Listerine. You can reuse this recipe over and over as long as you store it in a sealed container. Make sure you use the original Listerine, not the new improved kinds they have on the market now.
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