Thank you all for the responses!
@Cherlyd They didn't do a biopsy, they didn't want to waste time because whatever is there needs to be removed. He had a small residual node about the size of a pea that they didn't want to remove after treatment was completed last year. They thought his body might resorb it. He got so weak and was hospitalized for 14 days after his rads and chemo were done. He needed TPN nutrition (IV feeding)
The doctor forgot to order a post treatment CT scan in October when we were there last and it took till Jan to get another ordered, by then his neck had started to swell.
I am trying to keep positive but its so hard to see him going through so much pain again. I've convinced him to use the M-eslon 15mg slow release we have at home and Statex liquid for breakthrough till we get new Rxs from the doctors. Its definitively helping more than tylenol.

Thanks again!
Josee