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 Castle Park Dental Care 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

Why our patients love Castle Park Dental

Here's some of the recent feedback from our amazing patients

Patient reviews

773 Reviews

5.0
SB

Stuart Black

Very professional and efficient.

DR

David Richmond

The whole practice is well run and professional I’d highly recommend them.

KW

Karen Wagg

Great service. Easy monthly payments and I always feel a valued client of this practice.

JG

Jacqueline Gibson

Very friendly, efficient and caring staff. First class treatment rooms with state of the art equipment.

FM

Fiona McClelland

Excellent service and a kind, professional and informative team. Andrew and Simon have provided my care. Both have been exceptional.

N

Niro

As someone who's one of those that fear the denistry (prior to my appointment at Castle park I hadn't gone for about 6 years). The staff are so kind and very welcoming. They also always ensured I felt comfortable and was ok with any and all procedures or any aspects that needed to be performed. The few times I've now been there, they've always been clear, clean and professional. Thank you for being so welcoming.

MH

Margaret Hairsine

I feel very comfortable, and well supported when l attend my dentist appointment with Andrew, we have a chat, and then had a look to see if any thing has changed with my teeth. I always come away on a positive note.

KH

Ken Harker

Very friendly staff, very clean practice all over good experience

AW

Amanda Walker

Fab experience. Everyone friendly and helpful.

SP

Simon Parish

I was very nervous having had bad dental experiences elsewhere. After the amazing,painless treatment I am no longer nervous. I would recommend this practice,especially Simon,to anyone.

CG

Christopher Giles

Excellent service, very professional, all procedures thoroughly explained before starting. Thank you team @ Castle Park

PH

Peter Hallett

Always get good service and treatments.

CK

Christine Knott

Excellent dental care at all levels. Painless and thorough treatment. A calm and professional service. I look forward to going!

JF

Janet Fas

Been going to Castle Park Dental Care for years. I went to Chris when he was in Hessle before he set up in Cottingham. Great practice, good team of people. I have a plan which is probably a little more expensive than some practices. But never any complaints and you get what you pay for.

LC

Lesley Cross

Andrew is a very calm, caring and gentle person and makes me feel at ease when having any treatment done.

16th May 2026

The whole experience was highly professional. I felt involved and consulted. I was asked regularly if everything was okay The treatment was explained and care was taken to ensure best practices

14th May 2026

Felt very relaxed with the whole service from reception and being treated by Edward.

9th May 2026

Friendly helpful staff

7th May 2026

Staff were very welcoming and professional keeping in mind my fear of dentists. I was also able to book my next appointment at a date and time that was convenient for me.

6th May 2026

I dont feel nervous or scared

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