When Canker Sores Go Bad

We all get canker sores every now and then.  They usually appear without apparent reason, only to disappear just as easily within a few days.  But when does a canker sore turn into a problem?  Look out for these warning signs for when it’s time to bring your sore to Song’s Lynnwood dental clinic:

  • You have a sore that persists for more than two weeks.
  • Your sore is more than one centimeter in diameter.
  • You have a high fever that appeared when your sore appeared.
  • Your sore is unbearable, particularly if it makes it difficult to drink.