What should I do for a headache that won't go away?

Id Accelerator: A headache that "won't" go away can have many possibl causes: you should see either an interventional pain management physician/anesthesiologist or neurologist to try to identify what is or are the acceletors to your headache: possible causes: neck arthritis/facet joint arthritis, TMJ arthritis, muscle tension, infections/sinusitis, poor vision, hight blood pressure...Ect...