CANCERFREE50,
I apologize that no one has replied by now, but I will try. There is a Head and Neck section on this site and that is where many of us H & N patients/ survivors check in to see the posts.
If your husband is normally a positive person, he may just be going thru a spell of "Why me". I am also a pretty positive person and think I can do anything and have a Red "S" on my T-shirt. I can honestly say, that when I first heard the words "You have cancer", well things got different from that point on for awhile. Oh, I held a "Pity Party" for myself one evening, but realized that I wasn't helping my situation. So, I changed my mind and decided that I was going to give this battle my all. This week marks my 8th year anniversary of completing my treatments.
I had Base of Tongue cancer and the Surgeon had to remove a good part of my tongue along with a radical neck disection. No saliva for me, but others have better results. The Doctors can give him some anti-depressant med's if needed. A fair share of the posters on the H & N section often mention that they were given some to help them get thru this and don't need them now.
You asked how can you help him stay positive? My wife was with me during the first few weeks of my Surgery and recovery at home. She had taken some of her vacation time to make sure I was okay. Her just being there, if I needed anything was very helpful. Just be there if he needs something. This isn't an easy road to travel, but it is doable.
Again, please check out the Head and Neck cancer section here.
My Best to Both of You and Everyone Here