If you get canker sores (or are they cold sores?) you know how good it feels to get relief. Learn the difference and the best ways to treat each.
Many toothpastes contain an ingredient called Sodium Lauryl Sulfate (SLS). SLS is a strong detergent and has demonstrated in several studies to increase canker sore outbreaks and pain.
What causes canker sores, how to prevent them, and how to make them less painful when you do get them.