Neck & Shoulder Relaxation:  

This is the one tried and proven way to release tension in your neck, shoulders and head and help reduce your need for pain medication.
Sound too good to be true?

Did you know that stretching your neck to release tension can actually put your neck muscles into spasm causing neck and headaches* if done incorrectly. And bending your neck to "crack" your neck can likewise do the same? And isn't that exactly what you do when you feel a head or neck ache starting? You either try to ignore it or you try to stretch out the muscles, right? The very thing that make it worse.
Yet, the one true way to relax muscles is to tense them. Obviously, how it's done makes the difference.

This program, by the Stress Management Institute, leads you through a gentle tense and relax exercise (Jacobsonian in nature) for all major muscle groups of the head, neck and shoulder area.

The only thing beyond this program is biofeedback. And in my 20 years experience as a certified biofeedback clinician I found roughly 80% of my clients responded well to the tense relax techniques found on the tape and didn't need biofeedback.
Work with this program and soon your neck and shoulder muscles relax to the point where it seems that your head is weightless and floats on your spinal column. Those who use this program call it the "chiropractor on a cd" program