I have cuts on the upper right and left side of my mouth along the line where my gums meet my cheek. They sting a lot, especially if I move my cheeks outward at all. Even if Im just gently swishing water in my mouth, tipping my head to let the water just flow into the cuts via gravity, it stings so much I tear up. I just woke up one morning with these cuts a few days ago, and Im unsure as to what caused them, since they are too high for me to have bitten to cut myself.
Hi with your query, it looks like you had an ulceration of vestibule which it could be of many reasons one common issue being poor oral hygiene. Do you rinse your mouth after every meal? Because sometimes when the food get stuck in the vestibule after food by chance if you sleep like that it can also cause this. It would have been good if you had mentioned your habits like pan chewing, Gurkha etc. What it is better to check your oral status with your dentist to rule out the exact cause. Hope thud helps you