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what s the difference between canker sores and cold sores

A 43-year-old member asked:
Dr. Richard Ruden
37 years experience in Dentistry
Vrus vs. environment: A canker sore or aphthous ulcer usually is caused by stress to movable tissue areas and has a white center surrounded by a reddish area.. The stress c ... Read More

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A 48-year-old member asked:
Dr. Daniel Wolter
29 years experience in Dentistry
No: Cold sores are caused by a virus, and canker sores are auto-immune (some suspect a bacterial or viral link, but that's not proven). In either case, on ... Read More
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A 30-year-old member asked:
Dr. Robert Kwok
32 years experience in Pediatrics
Cold sore is herpes: Cold sores are on the lips or on the face near the lips. They are caused by recurrences of herpes virus, which lives in the nerves after an initial in ... Read More
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A 47-year-old member asked:
Dr. Scott Terry
28 years experience in Dentistry
Be Careful: It is important to know that "cold sores" are caused by a virus called the Herpes virus. They are easily spread from one person to another. A canker s ... Read More
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A 34-year-old female asked:
Dr. Al Hegab
Dr. Al Hegab answered
39 years experience in Allergy and Immunology
Nothing : It just won't help in this case, however, don't use it again in such manner, good luck
A 47-year-old member asked:
Dr. Gary Sandler
53 years experience in Dentistry
Canker vs Cold Sore: Here is a great comprehensive answer to your question: http://www.Uhs.Umich.Edu/coldcankersores.
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A 39-year-old female asked:
Dr. Diane Minich
36 years experience in Family Medicine
Not on lips: A canker sore is painful sore or sores inside your mouth -- on the tongue, soft palate (the back portion of the roof of your mouth), or inside your ch ... Read More
A 39-year-old member asked:
Dr. Scott Bobbitt
31 years experience in Dentistry
Two different things: Cankers (recurrent aphthous ulcers) are an "auto-immune" type reaction to trauma/stress (such as biting your lip). They occur on the loose membranes o ... Read More
A 52-year-old member asked:
Dr. Howard Spector
39 years experience in Orthodontics
Herpetic lesions: Canker sores of herpetic origin can be treated palliatively to give relief from the soreness. Abreva is an over-the counter topical gel/medication th ... Read More
A 30-year-old female asked:
Dr. Joseph Bouvier
24 years experience in Pediatrics
See below: Cold sores occur primarily on the outside of the mouth (but theoretically, they can occur inside), canker sores occur primarily on the inside and can ... Read More
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