Wayne, can't give you advice, but can offer sympathy. This happens to John alot also, especially if he coughs, sneezes or opens his mouth a certain way. He'll press hard on the spaiful spot and it will subside pretty quickly. He has a fair amount of facial swelling due to lack of drainage[ missing lymph nodes] I think that, plus the left over effects of rad tx. exacerbate the jaw pain. Try to be very careful about how you open your mouth or turn your head. Amy