Causes of Canker Sore from Dentist Dr Chris Kammer
Channel: My Best Video Channels
Date: 2013-06-16

http://tiny.cc/canker-sore-in-throat If you have a sore and you're wondering if it's a cold sore or a canker sore causes, just look at where it shows up; Cold sores causes usually appear outside the mouth, around the lips, chin, or nostrils. Causes of canker sore are always found inside the mouth.