Can Peroxide Used As A Mouth Rinse Cause Cancer?


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All I can say is one time I had started using a peroxide mouth rinse (for tooth whitening), and shortly thereafter, I developed a nasty, nickel-sized sore in my mouth that stuck around for 6 weeks.  It was so bad I had to see two doctors and was prescribed a strong painkiller.  I didn't associate the sore with the peroxide until months later when I resumed using the mouth rinse, and developed more sores of the same type.  I've since stopped using the rinse altogether and haven't had a sore since.  Who knows; maybe the sores were a prelude to cancer.  I'm not saying they were, but it's concerning.  And even if it just causes sores, that's bad enough for me.

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