During a recent conversation with a friend we discussed her headache and neck issues. The focus was on non-medical efforts to relieve her pain and prevent it in the future. The pain always started in or near the neck and her jaw.
We discussed a few stretches and exercises and discussed yoga. I looked for a couple of articles that would describe moves/poses that can provide comfort to painful neck and head.
The following are some goodbasic moves/poses for the body and specifically the neck.
These are a bit more broad brush. Effective for the body and ultimately for the neck.