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how long does a canker sore last

A 45-year-old female asked:
Dr. SCOTT HARWOOD
44 years experience Oral and Maxillofacial Surgery
Not long: 7-10 days.
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A 39-year-old member asked:
Dr. Robert Berg
48 years experience Dentistry
Varies: The severity and duration of canker sores varies greatly from person to person: it could be a few days or a few weeks. Try to do things to build up ... Read More
A 48-year-old member asked:
Dr. David Mjos
43 years experience Dentistry
Awhile: If it is really a from syphilis, it will go away and come back again. It is easily treated with antibiotics. Just because it goes away, doesn't mea ... Read More
A member asked:
Dr. Marvin Den
44 years experience Internal Medicine
COULD BE HERPES: Suggest you see your gyn when it recurs. If herpes there is treatment for same, but need to be sure that it is that.
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A 41-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
If you have had it : For more than 2 to 3 weeks - please see your dentist for evaluation. F you have a canker sore ( aphthous ulcer) you can rinse your mouth w warm salt w ... Read More
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A 49-year-old member asked:
Dr. John Chiu
Dr. John Chiu answered
56 years experience Allergy and Immunology
Less than a week: They may disappear from 3 to 7 days in most cases.
A 26-year-old female asked:
Dr. Lonnie Smith
38 years experience ENT and Head and Neck Surgery
Wait: Wait until the canker sore has healed completely. That is best for you and maybe yoir partner.
A 49-year-old member asked:
Dr. Gary Sandler
53 years experience Dentistry
Canker sore: How long is "for so long"? And are you sure it's a canker sore? If it is, size and duration varies from individual to individual and from time to tim ... Read More
A 40-year-old male asked:
Dr. Joseph Simaie
24 years experience Dentistry
Prescription needed: If over the counter medication is not helping then you need to either go to a dentist or urgent care for prescription strength medication or mouth was ... Read More
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A 30-year-old male asked:
Dr. Gary Sandler
53 years experience Dentistry
Tongue lesion: Generally speaking, any lesion lasting longer than two weeks should be examined by a qualified dentist or Oral Surgeon. If you are concerned, you can ... Read More
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