Arm & Hammer / Church & Dwight Co. review: Arm & Hammer advance white toothpaste

Three days ago, I ran out of a different brand of toothpaste, so I bought two tubes of Arm & Hammer Advance White since it was a good price. After using it for the second day, my lips are chapped and cracking and everything tastes metallic. I stopped using the toothpaste and am trying to get my mouth to heal. Looking online, it says this reaction is an allergy, but there are too many people who are having a reaction. It must be some one of the ingredients causing mouth burns on all of these people. Some of these complaints go back quite a few years, and it makes me angry that this product is still on store shelves. This company should be held accountable for harming people.