5 doctors weighed in:
How long does it take for mouth ulcers to form?
5 doctors weighed in

Dr. Keegan Duchicela
Family Medicine
3 doctors agree
In brief: Canker sores
Or mouth ulcers, usually form over a few days and can last up to 10.
If any painful lesion in your mouth is lasting longer than that, you should see your doctor for an evaluation.

In brief: Canker sores
Or mouth ulcers, usually form over a few days and can last up to 10.
If any painful lesion in your mouth is lasting longer than that, you should see your doctor for an evaluation.
Dr. Keegan Duchicela
Dr. Keegan Duchicela
Thank
Dr. Kini Tran
Dentistry
1 doctor agrees
In brief: In a few days
It can take a few days for the mouth ulcers to form and usually takes about 1 to 2 weeks to go away.
Mouth rinse with listerine 2-3x per day for 30 seconds each helps keep it small or controlled to not develop to maximum size.

In brief: In a few days
It can take a few days for the mouth ulcers to form and usually takes about 1 to 2 weeks to go away.
Mouth rinse with listerine 2-3x per day for 30 seconds each helps keep it small or controlled to not develop to maximum size.
Dr. Kini Tran
Dr. Kini Tran
Thank
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