Skip to content
My WebMD Sign In, Sign Up
Bad canker sore
avatar
cjpropes posted:
I have recently developed a canker sore in the very back of the left side of my mouth where my cheek meets my gum very near my jaw. Directly under it I have some pain when I look down or press on my neck right under my jaw. I didn't feel any swollen lymph nodes until I messed with it profusely, I am wondering if the sore is causing this and could I have made it worse by messing with it?
Reply


Featuring Experts

Welcome to WebMD's Ear, Nose, and Throat Community — a site where members help each other. If you have an experience to share or would like ...More

Helpful Tips

Your Home Black BagExpert
Doctors used to carry black bags containing all the medical tools they would need for a home visit. Of course, that rarely happens anymore. ... More
Was this Helpful?
31 of 53 found this helpful

Expert Blog

Focus on Flu

Find answers to your questions about seasonal flu issues and answers to your concerns about the flu season and H1N1...Read More

Report Problems to the
Food and Drug Administration

FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.