What should i do to help to get rid of the pain of a canker sore?

Time will heal it: Canker sore will heal in about a week to 10 days. Avoid spicy and acidic foods as these will be irritating. You can try an over the counter canker sore medication for some temporary relief if thi gs are too painful for you.

Canker sore: Eat lots of cold things like ice cream and popsicles or warm soups whichever is more soothing for you. You can also ask your foctor for a prescription for 2 percent viscous Lidocaine which you can swish through your mouth ad lib.