I have had similar problems. I had 33 rad treatments for cancer in my tonsil. The 'stricture' I had was treated with hyperberic oxygen treatments. That's where you go into a chamber and breath o2 under pressure. The purpose is to saturate your body with 02 which will simulate the growth of capillaries. These in turn will allow o2 to go to the effected areas so your body can heal itself.

After that, I had to do what is called the shaker exercise. I still do them. Swallowing is better, however I do need to drink lots of water to get things down. Some thing go down, others don't. Last time I did a baium swallow, my epiglotis didn't seem to work too well. I was told, it's not that important. The radiation caused my muscels in my throught to become like a 'cinder block' as described by my doctor. (Dr. Aviv). He did a test called the FEESST test. Google it. It seems to tell them more than a barium swallow test.

Best Wishes,
Jeff