Oral thrush is usually harmless. It’s common in babies and older people with dentures. It can be easily treated with medicines bought from a pharmacy.

Check if it’s oral thrush

Adults

A pharmacist can help with oral thrush

Oral thrush can be easily treated with a mouth gel bought from a pharmacy. Treatment usually lasts at least 7 days.

Ask your pharmacist for advice. Always follow the instructions on the medicine packet.

If you leave oral thrush untreated, the infection can spread to other parts of the body.

See a GP if:

  • your baby is under 4 months and has signs of oral thrush
  • you don’t see any improvement after 1 week of treatment with a mouth gel
  • you have difficulty or pain swallowing

How you can prevent oral thrush

Thrush is an infection caused by a fungus called Candida. Some things can make the fungus grow more than usual.

You might get thrush if you’re:

  • taking antibiotics over a long time
  • using asthma inhalers
  • getting cancer treatment like chemotherapy

There are some things you can do to help prevent oral thrush: