Shelton also offers Tolcylen, a prescription-strength antifungal medication. It may also smell foul. Jojoba oil moisturizes nails and protects them against infection. Onychomycosis is a painful, irritating, and gross condition that should always be treated. A doctor created a mix of natural excipients which can be used to treat nail fungus or skin infections. Your nails become dryer with age, making them more fragile and more likely to crack. Ask your healthcare provider if snakeroot is appropriate for your type of foot infection. Over 20 years experience in podiatry. It was created by a physician.