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how can i stop a canker sore before it grows bigger

A 55-year-old member asked:
Dr. Michael P Vaughn
33 years experience Allergy and Immunology
Cautery for cankers: Cautery can stop canker sore growth. Topically applied debacterol is one such product used to achieve this.
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A 42-year-old member asked:
Dr. Sandra Eleczko
35 years experience Dentistry
May not be able to : We do not understand the exact cause of canker sores but they are related to stress , trauma and possibly vitamin deficiency, especially bs.. Here is ... Read More
A 40-year-old member asked:
Dr. Douglas Tavenner, jr.
49 years experience Cosmetic Dentistry
Comfort: Anything that makes you comfortable. It takes about 2 weeks to go away no matter what you seem to do. However check with your pharmacy for a few ite ... Read More
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A 54-year-old member asked:
Dr. Martin Hirsch
48 years experience Dentistry
Time: Will take about 2 weeks if it is caused by a virus. Warm salt water rinses to keep it clean and baby teething salves.
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A 53-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
Sore throat: For significant sore throat with swollen tonsils / lymph nodes – see physician & get a streph throat test. Consider tylenol (acetaminophen) or nonste ... Read More
A 54-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
Sore throat: The only way is by avoiding contact with the many viruses that cause colds/ sore throats. Avoid people who have upper respiratory infections. Wash han ... Read More
A 42-year-old member asked:
Dr. Ed Friedlander
43 years experience Pathology
Topical Rx: A salicylic acid wash is often adequate if you have only occasional outbreaks, or topical benzoyl peroxide as tolerated.
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A 47-year-old member asked:
Dr. Douglas Tavenner, jr.
49 years experience Cosmetic Dentistry
Comfortable: Don't play with it. Do anything that makes you comfortable. It takes about 2 weeks to go away no matter what you seem to do. However check with your ... Read More
A 47-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
Sx relief only: Cold tips: for sore throat – gargle with warm salt water (1/2 tsp salt in 8 oz of water). * for congestion – saline nose drops or a netti pot. *for ... Read More
A 26-year-old female asked:
Dr. Robert Killian
27 years experience General Practice
Herpes: If you have the job interview today it is too late. It would be wise to have some herpes medication in the medicine cabinet so that you can rid yours ... Read More
A 54-year-old member asked:
Dr. Meng Syn
Dr. Meng Syn answered
37 years experience Dentistry
2-7 days: The incubation period for oral herpes is from 2-7 days. Closer to 7. At the onset of the lesion, one is contagious from 7 to 12 days.
A 52-year-old member asked:
Dr. Stephen Pyle
38 years experience Dentistry
Zilactin;Orabase: Mintox is for stomach acid and will probably have little effect on the canker sore (apthous ulcer). Zilactin (OTC) has tannic acid which tends to cau ... Read More
A 51-year-old member asked:
Dr. Deborah Ungerleider
35 years experience Pediatrics
Try warm: compresses to the area several times per day and you can apply over-the-counter acne cream once/day.
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A member asked:
Dr. Martin Raff
55 years experience Infectious Disease
Abscess: As a general rule the application of warm moist packs to this multiple times a day will bring it to a head, allow it to rupture and drain. Catching i ... Read More
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A 22-year-old female asked:
Dr. Patrick Mckenna
13 years experience Preventive Medicine
No magic solution: Ulcerated sores like this simply take time to heal. Avoid picking at the scab to allow it to heal most efficiently and with minimal scarring.
A 32-year-old female asked:
Dr. Glenn Messina
34 years experience Aesthetic Medicine
Under 14d: Most viral outbreaks will subside within 2 weeks. The ointment should help shave a few days off
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A 28-year-old male asked:
Dr. Leonard Pizzolatto
40 years experience General Practice
Probably not: If you have no symptoms, it is probably not a cold sore. Probably just a skin blemish. If it does not resolve and you are concerned about it please se ... Read More
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A 54-year-old member asked:
Dr. Scott Bobbitt
31 years experience Dentistry
See dentist early: S/he can use laser eneregy to halt progression of the lesion if caught in the prodromal ("wormy" or "chapped feeling") stage of the lesion. Some medic ... Read More
A 34-year-old female asked:
Dr. Daniel Rubenstein
50 years experience Dentistry
Canker sore : If it is a canker sore, it will heal on its own in 7-10 days. If it does not heal after 10 days, have it examined by your dentist, oral surgeon, or a ... Read More
A 36-year-old female asked:
Dr. Durga Komaragiri
31 years experience Internal Medicine
Likely a lymph node: Lymph node swelling due ti infection/inflammation/ can also be a cyst. See pcp if symptoms of pain/redness infection worsen.
A 24-year-old female asked:
Dr. Scott Methven
19 years experience Dentistry
Laser: Hi Kenneth! It's usually a fairly easy surgery. I use a soft tissue laser to remove mucoceles in my office. They usually heal with a few days and u ... Read More
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2 thanks

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

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