5. Tongue Ulcers
We’ve all had them and everyone seems to have a different theory as to why they appear. Even the experts don’t know for sure what they are and what specifically causes canker sores. They suspect, however, that these little devils are viral in nature and have ties to elevated stress levels. I’ve also long held the opinion that they spring up on the tongue and cheeks after eating too much sour fruit, particularly citrus.
There are a few things you can do to treat tongue canker sores, like rubbing baking soda on the affected area or rinsing your mouth with salty water. Otherwise, they should be gone within two weeks — any longer and you may have a bigger problem.