There is nothing more annoying than waking up the next day to find out that you have a sore in the insides of your lips or on your tongue. Cankers sores are ulcerations that are found in your mouth and sometimes on your tongue. Most of the time canker sores develop after mouth injuries like accidentally biting your lip or your toothbrush hitting the base of your gum. Characteristically, canker sores have red outlines and the middle region...