Fungal infections of the toenails, or onychomycosis, cause the nails to darken, thicken and split. Fungal infections of the toenails are common because fungi thrive in warm, moist, dark environments, which makes sweaty or damp feet ideal sites for infection. Fungal nail infections are more common in those with circulatory problems or diabetes and in those older than 70 years, according to the American Academy of Family Physicians. Men are also more likely to develop a toenail infection than are women. Onychomycosis is difficult to treat, and some cases require the use of prescription-strength oral medications. Mild cases of toenail fungus can sometimes be treated at home using vinegar.
Step 1
Mix the solution. Add one part vinegar to two parts warm water in a plastic container. The container should be large enough to cover the affected toe or toes.
Step 2
Soak your toe. Keep the affected toe in the vinegar solution for 15 to 20 minutes. Begin with a single foot soak each day, and increase to two or three, if needed. Space treatments evenly throughout the day.
Step 3
Rinse your foot. After soaking, rinse your foot well and then pat the area dry with a soft towel. Be certain to dry in between your toes, especially if you will be wearing socks or shoes.
Step 4
Lessen the number of soaks. Decrease the frequency of your vinegar soaks if you develop irritation or dryness on your affected foot. The Mayo Clinic states that you can also reduce the percentage of vinegar in your solution to reduce irritation. Increase the percentage of vinegar to 50 percent if you fail to notice improvement after six weeks.
Step 5
Soak a cotton ball with vinegar. Then apply it directly to the affected toenail after bathing. This can be done in conjunction with vinegar soaks, or every few days after clearing your infection to prevent a recurrence.
Tips and Warnings
- The type of vinegar you use to treat toenail fungus is not important. All are equally acidic and create the same pH change that may help clear fungal infections.
Things You'll Need
- Vinegar
- Plastic bin or bowl
- Cotton balls



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