Amy
I had my neck dissection a month ago today and my jaw split open mandibulectomy)spread out sideways ear to ear (jaws are hinged to go only up and down and left right, not ball and socket joints to rotate so it's painful). Yet I was able to put my bottom and top teeth together in the ICU despite massive swelling and five bloody drain bulbs. Something is not right here. I recommend calling your doctor asap and getting a prescription for physical therapy with a hospital that has a cancer center. There are lots of exercises to help with this problem but it is best to have a professional teach them to you so you don't inadvertently hurt yourself.