A member asked:

What are the causes of canker sores in your mouth and how do you get rid of them?

8 doctors weighed in across 4 answers
Dr. Gary Sandler answered

Specializes in Dentistry

Mostly time: The cause of canker sores is not well understood. It often occurs during times of stress in areas that get irritated from toothbrush, food or sharp tooth. There are some medications or ointments you can get in a pharmacy to help them feel better meanwhile. Some dentists can apply in-office treatment or laser to speed recovery somewhat.

Answered 12/10/2013

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Stress or trauma: Canker sores can be more common during periods of high stress, trauma and vitamin deficiency. They will heal in about 10 days to 2 weeks. Over the counter medications can make you feel better. Avoid spicy food that can be irritating. Some people are sensitive to sodium laurel sulfate. Taking vitamin b complex supplements can prevent canker sore for many people.

Answered 9/8/2013

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Dr. John Thaler answered

Specializes in Prosthodontics

2 kinds of virus: Aphthous ulcers and Herpetic ulcers areS commonly referred to as canker sores or cold sores. Different viruses. Take 10 - 14 days to heal. Herpes is very easy to pass along and is with you for life. Aphthous ulcers only found in mouth. Herpes can be spread many places. Herpes can be treated with good success in many patients with acyclovir, denavir, (penciclovir) and other medications. Salt water rinses help.

Answered 1/22/2015

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Dr. Paul Grin answered

Specializes in Pain Management

Canker sores: are the most common oral lesions. Individual ulcers typically last 1-2 weeks. Complications of canker sores can include fever, swollen glands, and feeling run-down. If concerned, see your doctor for evaluation.

Answered 1/22/2015

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