I’ve had canker sores or mouth ulcers since I was in 2nd grade. I remember visiting the nurse and she would have me swish with a capful of 1/2 water 1/2 hydrogen peroxide. Yuck! Since then I’ve tried a variety of canker sore remedies including alum, salt, sauerkraut juice and who knows what else. Today, I’m sharing the canker sore remedies that actually work for me.