Red, hairy, bumpy: 10 clues your tongue can tell you about your health

6. Burning sensation

You may be undergoing a postmenopausal period or just using the wrong toothpaste. If your tongue stings but still look normal, it could be a hormonal change. As for others, you may have an allergic reaction to sodium lauryl sulfate (SLS), a toothpaste component that makes it foamy. You should probably change your toothpaste without SLS. According to doctors, Sensodyne doesn’t have SLS and could help alleviate the irritation.