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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

1015 Reviews

5.0
TB

Tracey Bentham

Excellent dentist practice. Good treatment and they keep to time in my experience.

12th April 2026

Dan and his assistant were very helpful to my 12 year old son, her spent a long time to clear out an infection to make sure if was right before the fillingVery good Thank you

FN

Francois Norris

Truly excellent service! All members of staff are kind, thoughtful and polite! With thanks, François

AP

Anthony Phillips (AJ)

I attended the practice following a referral and wanted to share my experience. I cannot praise Katherine and her team highly enough for their professionalism, kindness, and level of care throughout. The extraction procedure itself was handled with great expertise, and the aftercare and support provided were equally reassuring. I’ve never been particularly comfortable with dental visits, but this experience genuinely changed my perception. I felt well looked after from start to finish, and the team went above and beyond to ensure I was at ease. I wouldn’t hesitate to recommend them.

8th April 2026

Lovely staff

JB

Jessica Benjamin

Very friendly, professional and skilled practice.

2nd April 2026

Kind respectful staff, treat you as a paying customer. Transfer their knowledge to help, no negative points

1st April 2026

Professionalism, skill and personal attention of all staff.

1st April 2026

The dental surgeon and hygienist were kind and professional and explained things.

1st April 2026

Tracy (hygenist) and Jason (dentist) are highly skilled and yet highly personable. a visit to Mayhill is a pleasure.

CG

cicely gore

The Hygenist is always friendly and understands what treatment I can tolerate

AB

ann buckridge

I highly recommend Dr Ryan Lello for the very professional and efficient treatment I received. Ryan put me at ease and a difficult procedure was delivered with great care and little discomfort.

28th March 2026

Staff are lovely, had two wisdom teeth removed painless and over in minutes. Put me at ease.

27th March 2026

All the staff are very friendly and welcoming. Putting patients at ease as soon as you enter the building. Dr. Jason (dentist), was as usual very professional and thorough. I always recommend this practise to colleagues and friends.

26th March 2026

Always enjoy great treatment at Mayhill Dental Centre, have total faith in Dentist and Hygienist, my teeth look and feel amazing after my visits. I wish I had moved to this practice years ago.

25th March 2026

Staff always friendly, professional and helpful. The hygienist is very patient and understanding of my difficulties during treatment.

VC

Veronica crick

The Team are always helpful and responsive, so 'visiting the dentist' is a positive experience with excellent professionals.

24th March 2026

Very easy to talk to the dentist, they explained and made be feel I’m doing the right thing .

AH

Averil Hoggins

Brilliant dental practice. Everyone is very friendly and professional. Always time for a chat. I never feel rushed. Very pleasant premises.

MP

Mike Pegg

Great service and support from Mayhill. Always personable and professional.

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