Question: is it safe to rinse your mouth with baking soda?
Answer: Though more evidence is needed, some research has found that baking soda mouthwash is great for soothing pain caused by canker sores ( 10 , 11 ). You can make baking soda mouthwash using the recipe in the previous chapter. Rinse your mouth with this mixture once a day until the canker sore heals.