How can you get rid of a canker sore?

Answer:
They will go away by themselves within 4-14 days. To lessen the pain you can buy gel (e.g. bonjela) or special mouthwash (e.g. colgate peroxyl, oraldene). Gargling with extremely salty water is also supposed to help.
Note: There are comments associated with this question. See the discussion page to add to the conversation.
First answer by AislinnD. Last edit by Lemonjello. Contributor trust: 6 [recommend contributor recommended]. Question popularity: 2 [recommend question].