How to get rid of jaw/cheek pain?

Cause must be found. You cannot treat a problem without knowing what to treat. See your pcp or dentist for ideas on what may be causing your pain. Neuralgia, tmj, vasculitis, sinus, teeth, etc.
Diagnosis First. To get rid of jaw/cheek pain, you need diagnosis first. Best way to get a diagnosis is to see a board certified oral & maxillofacial surgeon.