What to do about lock-jaw?

Acutely: If you can not reduce it yourself (meaning place it back into articulation within the fossa) then you should seek the immediate help of an oral & maxillofacial surgeon or present to an urgent care center or ed to have it manually reduced. Longer it remains locked open, the more the surrounding musculature will constrict & spasm. Skeletal muscle relaxants & sedatives often needed before & after.

See OFP specialist: TMJ syndrome may cause ear pain, ringing in the ears, jaw locking, and pain behind the ear. Proper diagnosis is the key to successful treatment. See Orofacial Pain expert for a consultation and treatment options.

See a TMJ: Specialist. Many dentists treat TMJ.