HuffPost may receive a commission from some purchases made via links on this page. Every item is independently curated by the HuffPost Shopping team. Prices and availability are subject to change. Board-certified and Cincinnati-based dermatologist Dr. Alexandra Bowles says there’s a reason your foot and toenail fungus is so persistent and may seem impossible to eliminate for good. Thriving in the warm, damp environment of our shoes and skin , she said these dermatophytes, molds or yeast feed on