Get Virtual Care
For Businesses
About Us
A member asked:
How do doctors tell if a canker sore is infected?
2 doctors weighed in across 2 answers
Pain and swelling: Canker sores rarely get infected. If you have swelling, a lot of pain, or it deos not heal in about a week to 10 days it is time to see a dentist and find out what is going on in your mouth.
Answered 7/15/2017
4.9k views
Canker sores: Canker sores are the most common oral lesions. Individual ulcers typically last 1-2 weeks only. They can be painful and can make eating and talking very difficult, but not infected.
Answered 8/23/2014
3.8k views
Related Questions
A member asked:
Is it possible to get hep c from accidentally drinking from an infected persons cup or bottle of water. What if you have a canker sore?
A doctor has provided 1 answer
A member asked:
I have a canker sore that hurts so bad that I can't eat should i go to the family doctor or dentist?
A doctor has provided 1 answer
A member asked:
I currently have a canker sore on my gum, i found a good size knot under the mandible on right side. The knot is sore. Should i see a doctor?
9 doctors weighed in across 4 answers
A member asked:
I have a canker sore on my tongue that does not heal. I've had others but they always heal. I am very concerned. Do I begin with a doctor or dentis?
2 doctors weighed in across 2 answers
A member asked:
Is it ok to put aspirin directly on canker sore in throat (carefully using Qtip)? Salt water rinse not helping. Doctor confirmed canker sore.
2 doctors weighed in across 2 answers
People also searched for:
Have something that looks like a canker sore on my penis shaft. been putting neosporin on it, doesnt look infected , seems maybe it's healing slowly. Anything else I should do or just continue as is and see a doctor if it doesnt get better soon?
Hey doctor I had oral sex with a guy yesterday. I have a canker sore below my lower lip and I sucked him. Can I get infected with HIV? Should I get te
I keep getting disregarded by doctors that Ive tried to show this to or bring attention to it. It seems like its brushed off as nothing more than a canker sore. Its been there for like two months its painful. Can I show someone a picture of it?
I got canker sore and use same spoon w/ people who has herpes. She didn't have lesions right now. I start acyclovir 20 min later. Will I get infected?
Will a doctor prescribe pain meds for canker sore on uvula?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
