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 Lynn Road Dental Practice 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 compliment we receive is when our patients refer their friends and family to Lynn Road Dental Practice. 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

717 Reviews

5.0
AK

Amanda Kirk

Best dentist ive ever been too, very reassuring<br>Khem & jeanette

MS

mar sap

Great dental care

26th September 2026

Dentist that I see is very thorough and always explains everything

26th September 2026

I have been going here since we moved to Norfolk in 2011 (15yrs) and had the same dentist all the time. I am very anxious but have come to trust my dentist and feel reassured that he understands my fears.

JH

James Hallatt

Good experience. Teeth feel clean and silky.

JE

John Edgley (Edge)

Great efficient service, very friendly & professional.

23rd September 2026

Very helpful and friendly staff .. very through and professional

23rd September 2026

Nothing to add to previous comments. Very satisfied with my appointment & whole dental experience. Lovely staff, all welcoming & professional.

22nd September 2026

Excellent dentist

19th September 2026

Lovely dentist and hygienist. All the staff were friendly and the practice was clean.

18th September 2026

All members of staff were extremely friendly and helpful.

16th September 2026

Brais is excellent

16th September 2026

Reception staff friendly and welcoming. Dentist and dental nurse both excellent. This practice always great. No issues at all. Highly recommended.

16th September 2026

On time, took time to explain everything properly, friendly, courteous.

RW

Rosemary Whittington

Brilliant dentist

SD

steph denzey

My son had an appointment and was really anxious. The receptionist Jemma was lovely and very caring. She took the time to speak to him and put him at ease and checked he was ok after. Always have had a great reception from her even when they are really busy.

14th September 2026

It was an easy calming experience. Had no been at dentist for a long time and was apprehensive but was put at ease

12th September 2026

helpful and friendly staff

BP

BARRY PRITT

Both appointments with my dentist and the hygienist were absolutely fine with no issues at all. Clear and understandable explanations were given regarding the treatments and both were done in a friendly, professional and very competent manner. The reception staff were their usual helpful and efficient selves. Thank you to all concerned for a hassle free experience.

7th September 2026

The hygienist Johnson makes me feel comfortable and does an amazing job without causing discomfort and soreness after a visit.

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