Research is key, the most effective antifungals can be dangerous if used incorrectly. I got a bad burn (sunburn like peeling) on my forehead from just oregano oil because it's that hot. I do believe we all have the fungus in our bodies, we're breathing the same air, it's in the water supply and the food, even our pets, so avoiding it is nearly impossible. I started with a Candida flush product and bathing in epsom salt, (after doing just that, I felt 10 years younger and must have lost 10 lbs of parasites)