It feels worse with every prodding poke. Another canker sore. What did you do to deserve this? Maybe nothing at all. “Most times, we don’t know why they come,” says Dr. Alessandro Villa ...

Like an annoying house pest, canker sores are a minor inconvenience that can really do a damper on your days. The little, painful spots interfere with regular, daily things like eating lunch ...

You may be familiar with cold sores, but what is the difference between a cold sore and a canker sore? While both are painful ...