If one day you see a friend with a frown, silence, a face of displeasure, not thinking about tea and food, and even giving up his favorite snacks, you may also ask him if he has oral ulcer before suspecting that he is lovelorn and depressed. Our daily oral ulcer often refers to [recurrent oral ulcer], also known as [recurrent aphthous ulcer] and other similar names, is the most common oral mucosal disease. It is reported that 20% of the people have experienced oral ulcer, regardless of age, sex, race, can occur. First, is what a recurrent aphthous ulcer? 1. As the name implies The word “aphtha” comes from Greek and means “burning pain”. It can be seen that the Read More …