How it's used: You combine our herb formula with 4 cups of inexpensive apple cider vinegar from the grocery store (following instructions in the box). After letting the mixture steep overnight, strain out the herbs, keeping the liquid. Pour the liquid into a plastic container with a lid, large enough to get your feet or hands into (a plastic shoe storage box works great!) Then you simply soak every day for 3-5 minutes. You should start seeing new nail growth at the base of the nails in about 5-6 weeks. For complete success with our product, or any other anti-fungal, you must continue treatment until the bad nail is completely grown out (somewhat like when you grow out a bad nail after hitting yourself with a hammer.)