I have dystonia recently my jaw has locked.im having pain in jaw and ear canal. whole side of face is numb.is this common. what can i do to unlock it?

Physical therapy: Possibly is TMJ disorder. Acupuncture, biofeedback , and evaluation by a TMJ expert might be in order. Another concern would be bell's palsy. Might you be describing a facial paralysis as a "lock"? The "numbness" to touch indicates nerve contusion and/or impingement, as is seen with bell's palsy. Bell's palsy should be evaluated sooner than later. You are advised to consult a neurologist.

See a Dentist: Even with the muscular issues of dystonia, the numbness in your face is extreme and not common. The symptoms, though, are all probably related to clenching/grinding of your teeth as a part of the dystonia, but could also be driven or exacerbated by stress. The jaw joint is being damaged and needs to be protected. See your dentist for a night guard to help with this.