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Mouth ulcers concerns

Mouth ulcers are painful sores that appear in the mouth, usually on the soft tissue - cheeks, lips or tongue. They can be white, red, yellow or grey in colour and swollen.

Although they're uncomfortable, mouth ulcers are usually harmless and clear up by themselves within a week or two.

In many cases, the reason for mouth ulcers is unclear, but triggers are thought to include:

  • Accidentally biting the inside of your cheek or a sharp tooth
  • Poorly fitting dentures
  • Hard food
  • A defective filling
  • Stress and anxiety
  • Hormonal changes – some women develop mouth ulcers during their monthly period
  • Eating certain foods – such as chocolate, spicy foods, coffee, peanuts, almonds, strawberries, cheese, tomatoes and wheat flour
  • Toothpaste containing sodium lauryl sulphate
  • Stopping smoking – when you first stop smoking, you may develop mouth ulcers
  • Viral infections – including the cold sore virus, chickenpox, and hand, foot and mouth disease
  • Medical conditions - including vitamin B12 or iron deficiency, Crohn's disease, coeliac disease, reactive arthritis, HIV, lupus, Behçet’s disease
  • Certain medications or medical treatments may also cause mouth ulcers

It's usually safe to treat mouth ulcers at home to help reduce swelling and ease any discomfort.

Self care

Tips for easing discomfort and aid healing…

  • Antimicrobial mouthwash or protective paste, available from your pharmacist
  • Use a soft toothbrush to brush your teeth
  • Use a toothpaste that doesn’t contain sodium lauryl sulphate, as this may be irritating
  • Avoid hard, spicy, salty, acidic or hot food and drink until the ulcer heals
  • Use a straw to drink cool drinks
  • Avoid things that may be triggering your mouth ulcers

Mouth ulcers can sometimes be a possible symptom of a more serious problem such as infection or mouth cancer. It's therefore essential that you contact The Mayhill Dental and Specialist Centre as soon as possible if you notice:

  • Your mouth ulcer has lasted three or more weeks
  • You keep getting mouth ulcers
  • Your mouth ulcer becomes more painful or red
Patient Reviews

People are talking about us

The biggest complement we receive is when our patients refer their friends and family to The Mayhill Dental and Specialist Centre. In fact, we have built much of our practice on these valued, trusted recommendations over the years. Read our reviews to hear why our patients are recommending us…

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Patient reviews

995 Reviews

5.0
LX

Lyudmyla X

Very good dental clinic

20th March 2026

Staff pleasant and professional and satisfied with my treatment

15th March 2026

Good reception.Good dentistry Attention to detail

15th March 2026

Catherine is very professional and caring. We have a good rappor and she always is aware of my issues. Jason is very skilled and an excellent dentist to

SJ

Sarah Jones

Exceptional care from highly professional staff. The whole team creates a calm and reassuring environment, which makes a huge difference for nervous patients like myself. I have received treatment including root canal and repairs to previous dental work from another practice, and the quality of care has been outstanding. Their expertise has quite literally saved my teeth and corrected earlier poor treatment. The standard of care at Mayhill is extremely high, and the experience has completely restored my faith and trust in dentists.

JB

Jonathan Barry

Great practice..very welcoming

12th March 2026

The dentist spent a good amount of time explaining what he was about to do and what I would need to do afterwards (extraction ) and with my fillings and check up I had a similar experience

11th March 2026

Everyone at the practice is very professional and respectful.

11th March 2026

I have complete trust and confidence in the team at the Mayhill. All treatment I have received from my dentist and hygienist over the years has been of the highest standard. They seem to constantly update and bring in new treatments or ways of working eg a new cleaning process whereby my hygienist disclosed the 2 types of plaque (who knew that?!) and then worked more efficiently to clean my teeth - it was excellent. It is a friendly practice with the feeling that staff are happy being at work.

7th March 2026

The dentist was very thorough and competent. The support team (Denal Nurse and Reception members) were excelent.

WS

William South

Very impressed with the treatment I received.

5th March 2026

Excellent friendly staff and professional team

4th March 2026

My treatment was carried out efficiently & competently & I was fully informed of each procedure every step of the way.

3rd March 2026

Highly professional yet friendly approach to my problem. Problem diagnosed quickly and treatment options well explained.

WE

Wood elf

Sarah is brilliant. Happy to spend the time explaining outcomes of examinations and preparing and understanding detailed treatment plans.

27th February 2026

Complete confidence in the team, friendly and kind.

KK

Kate Knight

Excellent dentist, exceptional care and you are seen on time, reception team are always accommodating and kind. Practitioners remember you and treat you so well.

26th February 2026

Warm, friendly reception, sensitive and professional treatment, felt well looked after.

25th February 2026

Clinician and all other staff focused on giving the best service possible. I was very nervous attending for this appointment but was fully informed on what would happen.

23rd February 2026

Hygienist and Dentist both did their jobs professionally and efficiently in a caring and pleasant way.

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