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  1. Nail fungus - Diagnosis and treatment - Mayo Clinic

    May 15, 2024 · Learn about symptoms, treatment and prevention of this common infection among older adults that causes nails to discolor and crumble.

  2. Nail fungus - Symptoms and causes - Mayo Clinic

    May 15, 2024 · Learn about symptoms, treatment and prevention of this common infection among older adults that causes nails to discolor and crumble.

  3. Mayo Clinic Q and A: Treatment for toenail fungus isn't always ...

    Jun 14, 2019 · When treatment is necessary, it usually involves a topical medication or antifungal medications. Oral antifungal medications taken for about six months are the most effective.

  4. Terbinafine (oral route) - Side effects & dosage - Mayo Clinic

    Dec 1, 2025 · It is used to treat fungus infections of the scalp, body, groin (jock itch), feet (athlete's foot), fingernails, and toenails. This medicine is available only with your doctor's prescription.

  5. Nail fungus - Mayo Clinic

    If your nail fungus is painful and has caused thickened nails, self-care steps and medications may help. But even if treatment is successful, nail fungus often comes back.

  6. Ciclopirox (topical route) - Side effects & dosage - Mayo Clinic

    Feb 1, 2025 · Nail problems treated with the topical solution form of this medicine may take up to 6 months to start improving. To help clear up your infection completely and to help make sure it does …

  7. Tolnaftate (topical route) - Side effects & dosage - Mayo Clinic

    Feb 1, 2025 · Description Tolnaftate belongs to the group of medicines called antifungals. It is used to treat some types of fungus infections. It may also be used together with medicines taken by mouth …

  8. How to trim thickened toenails - Mayo Clinic

    Aug 15, 2023 · Among these, a fungal nail infection called onychomycosis (on-ih-koh-my-KOH-sis) is a common cause of thickened toenails. The photo below shows an example of thick toenails that have …

  9. Undecylenic acid (topical route) - Side effects & dosage

    Oct 1, 2025 · It is used to treat some types of fungus infections. However, compound undecylenic acid generally has been replaced by newer and more effective medicines for the treatment of fungus …

  10. Tea tree oil - Mayo Clinic

    Aug 15, 2025 · Research hasn't shown tea tree oil is effective in treating toenail fungus. One small study found that pure tea tree oil helped a small amount of people who used it to treat toenail fungus.