I've had 2 dodgy toenails, one for about 10 years and one for about 2 years. After reading all the testimonials, I started soaking my feet in the cheapest generic supermarket white vinegar. I don't even know if it's distilled, but I assume it must be. I've also alternated between putting tea tree oil and generic chest rub ointment on both nails twice a day. After six weeks, the nail with the 10-year fungus now looks like a normal pink nail and the nail with the 2-year fungus still looks dodgy.