Just figured I'd share this, since I started doing this recently and its been helping me a lot... I had, before, used icy hot and other similar products, in the rub form. This helped, but it wears off after not too long..
I started using the icy hot medicated rolls (there are other brands too but I found this particular product works the best), you can cut them into the size you want. I have been putting them on my jaw line, and other parts of my shoulders and chest, I have even started sleeping with them on my jaw.. it seems to work pretty well as I have begun to feel a lot better since starting this, it may be worth a try for you