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Doctor insights on: What Causes A Canker Sore

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What causes a canker sore?

What causes a canker sore?

It is unknown: ...but some studies had shown it is triggered by changes in temperature, hormones, trauma, allergy,...etc. ...Read more

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Dr. Daniel Rubenstein
616 doctors shared insights

Canker Sores (Definition)

Almost everyone is infected with this herpes virus. The first episode is usualy in early childhood. It is dramaticaly different from all the later events. The virus is always present. When your immune system is weakened (stress, disease, almost anything) the viri end up stronger than your immune system. They do their job, and ...Read more


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What are the causes of canker sore?

What are the causes of canker sore?

Canker sores: Stress, tissue injury, certain foods, impaired immune system; nutritional problems, such as vitamin b-12, may be viral as well if not really canker but cold sore. ...Read more

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What can cause getting a canker sore and how can I get rid of it?

What can cause getting a canker sore and how can I get rid of it?

Canker Sores: are the most common oral lesions. Individual ulcers typically last 1-2 weeks. The cause is not known. The ulcers are usually self-limiting. Try to keep adequate oral hygiene as possible. ...Read more

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What causes canker sores & sore throat? I have canker sores on my gums, under tongue & sore throat after eating spicy pork rinds, cherries, garlic nuts.

What causes canker sores & sore throat? I have canker sores on my gums, under tongue & sore throat after eating spicy pork rinds, cherries, garlic nuts.

Unknown: Canker sores or apthous ulcers are most often attributed to an autoimmune reaction of the mucosa. The causative agents can vary among persons and there is no known cure. The best thing you can do is take note of the foods/drinks that cause this for you and avoid them if you can. If you get them bad enough a topical steroid intra-oral med can be applied to them to minimize the outbreak. ...Read more

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My boyfriend told me that every time after he gives me oral sex he gets a canker sore, we have both been tested and are negative, what can be the cause?

Local trama: The activity of oral sex may provide enough trama to inner lip or cheeks that may trigger an outbreak of a canker sore or apthous ulcer. These are not infectious or caused by bacteria or virus, just body reaction to some trigger, like stress, trama, certain foods or food coloring or flavorings, etc. ...Read more

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How can I get rid of a canker sore what. Causes them?

Manage Canker sores.: Canker sores are viral. Manage symptomatically. See a DDS/DMD who treats this for oral medicines and anti- viral salves. This will help. Go online to www.health911.com and link to cold sores for homeopathic remedies. Dehydration and prolonged sun exposure encourages these out breaks. ...Read more

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What should I do if I have a canker sore on the inside of my bottom lip, that makes it a what causes these annoying sores?

What should I do if I have a canker sore on the inside of my bottom lip, that makes it a what causes these annoying sores?

Canker sores: Canker sores can be caused by stress, an injury such as biting the lip, acidic foods. The exact cause is unknown. Canker sores heal on their own in 5-7 days. For protection from irritation during eating, apply orabase ointment (non prescription), which sticks to the sore to keep it covered. ...Read more

Dr. Sandra Eleczko
506 doctors shared insights

Aphthous Stomatitis (Definition)

Are small, benign but painful ulcers of the mouth and throat. They generally resolve on their own in 10-14 days. There are various over the counter remedies that ...Read more