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 Hindhead 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 complement we receive is when our patients refer their friends and family to Hindhead 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…

Patient reviews

828 Reviews

5.0

24th April 2026

Great people involved in running the practice. Efficient. After 40 years of attending I’m not about to change.

23rd April 2026

Excellent fillings in two teeth. Felt very relaxed. Good treatment.

16th April 2026

Highly competent, professional, efficient, empathetic and friendly staff.Extremely happy with my treatment.

WC

Wendy Cook

As always professional, friendly and efficient

10th April 2026

Very professional and friendly staff. I felt reassuringly at ease given the dental treatment that I have to undergo. Good follow up information received explaining the treatment plan and guidance.

KB

Katarzyna Baker

Absolutely amazing dental clinic , excellent service, professional and very friendly.

9th April 2026

From arrival to departure, excellent polite staff & my dentist Paul Ellis is always calm, polite & professional. I am always relaxed during my treatment.

NJ

Nigel Johnson-Hill

I’ve been with Hindhead Dental Clinic for over 40 years, and I’ve never had a problem, five stars every time.

DP

DAVE PICKERING

Very good

29th March 2026

Everyone is so kind and helpful, as well as been very competent in there rolls in the practice.Thank you

28th March 2026

The whole team, clinician , nurses, reception staff are all well trained caring and go out of their way to welcome you. This comes from the clinicians , the example they set and the high standard they wish to maintain

28th March 2026

Excellent service, as always.

27th March 2026

Everyone friendly and helpful.

FW

Fraser Wilson

Thorough and professional treatment as always. I am always welcomed warmly. I have always left feeling happy and without any pain. Throughly recommended.

20th March 2026

The pleasant attitude of all members of the team, with whom I had contact.

JB

Jane Brooks

Always a friendly and supportive service.

ED

Edward Doe

Hindhead Dental Clinic gives 1st rate dental care with charm & efficiency

15th March 2026

Information given

12th March 2026

Both Paul and Leah exercised both professionalism and great patient contact, as usual!

MQ

Matthias Quinn

Absolutely amazing, professional care. Even my children love going to the dentist now. Super start service ✨

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