What is the best way to get rid of a canker sore? Does pouring salt on it work?

Hurts worse than it helps. Go to the drug store and pick up a tube of Orabase with Benzocaine. You no longer need a prescription for it. Place a small amount on a q-tip and dab, don't rub, it on the sore. Do this after eating and before bedtime. The benzocaine will numb it and the orabase will protect and help the healing . Good luck