I have a routine which seems to have worked well, at least for me.

At the advise of my RO, I have been doing daily stretches of my jaw (20 repititions opening my jaw to the maximum extent possible, two or three times a day) since I started radiation therapy. I have also been doing neck and shoulder stretching exercises 5 days per week. My neck exercises consist of turning my head each way, then tilting my head each way as well as back. For my shoulder I lie on my back and stretch my arm straight back and touch my wrist to the floor way above my head; I then pull my arm over my chest; finally, I stand at a wall and raise my arm as high as I can straight up toward the ceiling.

To this point, all is going well. My mouth opens fully without trouble, and my neck continues to get more limber. My shoulder stiffness has steadily decreased, and shoulder droop seems to be just about non-existent.

Chris