Canker sores are vexing and common. The reason they occur isn’t clear, but your toothpaste could be a factor. An ingredient ...

Over-the-counter gels provide temporary pain relief for both minor and moderate cankers. They feature an anesthetic called benzocaine that numbs the affected area. They also shield the canker from ...

The doctor might prescribe medications to ease discomfort and help heal the sores, but a blood test may be necessary first to ...

Another canker sore. What did you do to deserve this ... A surprising factor in some cases is toothpaste. A foaming agent called sodium lauryl sulfate is a common ingredient that can disrupt ...