Jaw locked in an open position, makes cracling noise when i try to move it, what should i do?

See a dentist: You likely have TMJ dysfunction. Someone with experience dealing with this (usually a dentist or oral surgeon) can work with you. Sometimes night guards can help decrease nighttime teeth clenching, a common risk factor. There are some exercises that may help, or you may need surgery.

Jaw Locked: Try to relax the jaw muscles, pull your lower teeth forward. If this does not unlock your jaws, see your dentist or seek medical attention now.