Canker sores

A few months ago I bought the 2 step crest whitening toothpaste...at the same time I had gotten 2 bad canker sores in my mouth with I thought was from eating something.... I stopped using the tooth paste for a while and started again about a week and a half ago nothing I have another bad canker sore in the same spot as the last one and a very sensitive Spong on my gums by my molar teeth which is about a inch long. When I touch it with my to get it almost feels like it's a blister like when you get burnt these spots are preventing me from eating, they wake me up... I have been using salt water, peroxide and a ora gel mouth wash that say promotes healing it's been about 5-6 days next week... Any help as to why I am getting these awful things how to treat then and how to stop them would be great

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Answer: The Toothpaste Is Possibly The Culprit , Also Check Your Diet

By Sarah h
Dental Professional

Toothpastes and mouthwashes that contain Sodium Lauryl Sulfate have been known to cause canker sores.  However it is usually something in your diet that triggers them such as a chocolate, gum, or some other sensitivity you may have.   Stress is also a culprit as it weakens your immune system.   Try eliminating the new items in your diet such as that toothpaste for a month and see how it goes.  Best.

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