Because fungus needs an acidic environment to flourish, alkaline baking soda actually prevents toenail fungus from spreading by creating an uninhabitable environment for it. Borax is a naturally occurring mineral that is also a powerful fungicide. These two combined create a remedy that can cure nail fungus fast. Mix equal parts borax powder and baking soda with just enough water to form a paste. Wet feet and gently rub the mixture onto infected nails. Do this twice daily and continue for at least two weeks after fungus appears to have cleared up.
If you have diabetes, you may have reduced blood circulation and nerve supply in your feet. You're also at greater risk of a bacterial skin infection (cellulitis). So any relatively minor injury to your feet — including a nail fungal infection — can lead to a more serious complication. See your doctor if you have diabetes and think you're developing nail fungus.