Bobbie,
Fortunately or unfortunately we head and neck cancer folks are a small group compared to, say, prostate or breast cancer and it is hard to find support groups. A local guy in my town tried to run a SPHONC support group but gave it up due to lack of interest. I had to settle for a men's only group that had mostly issues that were quite different from mine. The best support that I was able to find was right here.

Regarding swallowing. Not only could I not swallow for months, I also wore a pain patch 24/7 for months. If your throat is hurting too much you should definitely contact your doctor and see about pain management either through a skin patch or by shooting liquid or dissolved hydrocodone through your feeding tube. I know of no medication to stop the mucous, but in time it goes away. I had a Yankauer suction machine that I kept by the easy chair and bed at night and it was an improvement over just using tissue.
Hang in there, things will get better.

Danny G.