There is no treatment that kills toenail fungus instantly. However, some medical treatments, such as laser therapy and prescription antifungal medications, begin working quickly to stop the spread. Over-the-counter and natural remedies may take weeks or months to show results. Early diagnosis and consistent treatment are key to effectively eliminating the fungus. https://zanaquick.com/blogs/news/what-is-the-fastest-way-to-cure-toenail-fungus