Soaking garlic in vinegar can cure onychomycosis. Find eight peeled garlic, then pat the garlic cloves into mud, soak the garlic mud in about 350 ml of high-quality vinegar and seal it for a day or two. Soak your nails in warm water for 15 minutes, and then soak them in garlic paste water twice in the morning and evening, each time for not less than 20 minutes. It usually takes a week to work.