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Worried about fungal nail infection?

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This page summarises publicly available NHS information for educational purposes only. It is not medical advice or a diagnosis. Always consult a qualified healthcare professional.

What is fungal nail infection?

Fungal nail infections cause nails to become thick, discoloured (often yellow, white, or brown), and brittle. They're more common in toenails than fingernails and often start after athlete's foot. Treatment is slow — antifungal nail paints, creams, or tablets can take months to work, and nails may not look normal until they've fully regrown.

When NHS resources suggest seeing a GP

  • You have a fungal nail infection and.
  • The infection is severe and treatment has not worked.
  • The infection has spread to other nails.
  • You have diabetes – foot problems can be more serious if you have diabetes.
  • You have a weakened immune system – for example, you have had an organ transplant or are having chemotherapy.
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Self-care information from NHS

  • They may suggest trying an antifungal nail medicine that you brush onto the affected nail.
  • These medicines.
  • Should be used daily or weekly, depending on the type.
  • Need to be used for 6 to 12 months – it may take several months before you start to see an improvement.
  • May not be suitable for you if you're under 18, pregnant or breastfeeding.
  • The infection is cured when you see healthy nail growing back at the base.
  • Treat athlete's foot as soon as possible to avoid it spreading to nails.
  • Keep your nails short.

Common questions

How long does fungal nail treatment take?

Fungal nail infections are slow to clear. Antifungal nail paints can take 6 to 12 months for toenails and 4 to 6 months for fingernails. Oral antifungal tablets work faster but need a GP prescription and blood tests.

Can fungal nail infections clear up on their own?

Fungal nail infections rarely clear without treatment. Left alone, they can spread to other nails or cause pain, especially in toenails. Even with treatment, nails may not look fully normal for up to a year as they regrow.

How do I stop fungal nail infections coming back?

Keep feet clean and dry, change socks daily, wear breathable shoes, and don't share towels or nail clippers. Treat athlete's foot early, and avoid walking barefoot in communal showers or pool areas where fungal spores thrive.

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This page is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about your individual situation. NorMed organises publicly available NHS information and is not affiliated with the NHS.