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A 37-year-old female asked:

What is the cause of mouth sore?? i always have a mouth sore..

3 doctor answers9 doctors weighed in
Dr. Paul Grin
Pain Management 36 years experience
Canker sores: Canker sores are not pleasant and can be painful and uncomfortable. Canker sore is the most common oral lesions. Individual ulcers typically last 1-2 weeks. The condition is idiopathic (the cause is not known) and recurrent aphthous ulcers are usually self-limiting. Your dentist may prescribe an antimicrobial mouth rinse corticosteroid ointment to control the pain and irritation.
Dr. Charles Whiting
Obstetrics and Gynecology 27 years experience
Sodium lauryl sulfat: You may have canker sores. One way to make them go away is to avoid toothpaste with sodium lauryl sulfate. This is a foaming agent in most toothpaste. A good brand without sodium lauryl sulfate is Rembrandt Canker Sore toothpaste. Many people have no canker sores after switching to this brand. It can be hard to find in the drugstore but is available on Amazon.com. Best wishes!
Dr. Jovita Anyanwu
Internal Medicine 30 years experience
Most likely: due to Apthous ulcers in which avoiding tootpaste with sodium lauryl sulfate and use of peridex (chlorhexidine gluconate) mouth wash will be helpful. However other causes of oral ulcers like herpetic lesions, hand and foot diseas, Behcets syndrome etc must be considered. Since the sores are always present Behcets syndrome may be considered

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Upper Marlboro, MD
A 21-year-old male asked:

Sore/cut in my mouth, what could be causing this?

1 doctor answer1 doctor weighed in
Dr. Edgar Mendizabal
Internal Medicine 55 years experience
Aphthous stomatitis: It is probably viral but we do not know much. Please try valtrex (valacyclovir).
A 30-year-old female asked:

What are the posibble causes of increase number of mouth sore?

1 doctor answer3 doctors weighed in
Dr. Mark Venincasa
Cosmetic Dentistry 35 years experience
Let's see...: A virus, change in diet, stress, a disease, a new medication, a different toothpaste, among others.
A 23-year-old male asked about a 23-year-old female:

What can I use for a sore in the mouth? Glycerine is not helping and what could be the cause of it?

1 doctor answer1 doctor weighed in
Dr. Gary Sandler
Dentistry 54 years experience
Needs to be seen: We can't see the sore and therefore can't diagnose what you have. Since we can't diagnose what you have, we can't tell you how to treat the sore. You will need to see a dentist or physician in order to help you. Salt water rinses may help. Any sore remaining more than 2 weeks needs to be diagnosed!
A 22-year-old male asked:

I keep on having mouth sore (kanker sores), what's the cause of this?

1 doctor answer1 doctor weighed in
Dr. Yvette Kratzberg
Pediatrics 24 years experience
Apthous ulcers: Canker sores (aka apthous ulcers) can be caused by a variety of triggers: minor injury from dental work, vigorous brushing or sharp food, products containing sodium lauryl sulfate, acidic foods, diet lacking in vit B12, zinc, folate or iron, stress, hormone fluctuations. CS can also occur due to specific conditions: Celiac disease, inflammatory bowel diseases, autoimmune disorders or HIV.
A 49-year-old member asked:

What causes cold sore in corner of mouth?

2 doctor answers8 doctors weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
If it is an actual : Cold sore it would be caused by herpes simplex type i virus.
Dr. Armando Berguido
Dentistry 34 years experience
If your sore is truly at he corner of the mouth it could be Angular Chelitis and not a Cold Sore. Angular Chelitis has various causes the most common being Candida Albicans.
Nov 27, 2020

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Last updated Sep 29, 2016
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