Hello
It mostly looks like the wisdom tooth area which is not erupted completely leading to the cheek biting or biting of gums between your teeth while you are eating food. It is a very common occurrence due to incomplete eruption of wisdom tooth.
Do warm saline rinses, ie tale lukewarm water add a pinch of salt in it and rinse your mouth with that three to four times a day.
If this occurs again and again then the permanent solution for it would be to get your wisdom tooth removed. You have to visit a maxillofacial surgeon and get it property checked because the tilted wisdom tooth might affect the adjacent tooth
Next Steps
you can get in touch with Dr Rohit Yadav. He is an experienced and amazing maxillofacial surgeon and implantologist practicing in New Delhi
Health Tips
Do not rely on medication because this is something that will occur again and again.