About a year ago I noticed that I had some swelling in my right cheek near the corner of my mouth and back. The swelling is about the size of a quarter and appears to just be under the skin. Nothing on the inside of my mouth. I have been to the dentist, oral surgeon, dermatologist and no answers. I had an MRI done on my face and it showed no cyst. The swelling is minor but what I really don't like is at times it feels a little numb. I really need some help!!