Mouth ulcers can be uncomfortable. They look similar to small blisters and can be caused by a number of different things:

• a tooth rubbing,
• a lack of vitamin B12,
• anaemia
• or even stress.

Treatment of ulcers is quite simple and they will usually heal within 7 days. If they last for more than two weeks, you should go and see your dentist as this may be an early indication of something more serious.

If you have a mouth ulcer, you can help clear them up by using a special antiseptic mouthwash or with special pastilles. These are available from most chemists and pharmacies - just ask the pharmacist for advice.

Having a healthy diet can help prevent mouth ulcers and ensure you keep in good health generally. Remember to eat five portions of fruit and vegetables a day.