You're right.Keeping the goal in mind is what's important. He does have the PEG in. Sloan advocated putting it in before you felt crappy. They made it clear it was a choice but a highly recommended one. That said, they constantly speak of the importance of swallowing and are thrilled that he's not using it.
Charm, your wife sounds awesome. As I'm sure you know being happily married for many years has it's perks(to say the least). One of them is knowing what battles you can and can't win. So,I know to let Dave take the lead on this(cause a man does indeed need to do...) UNLESS I see his health sliding(then the man's gotta do what his wife needs him to do...LOL).
In addition to the mouth and throat pain, did people have issues with the mucous creating eating problems? That is getting quite nasty(or as Dave puts it"frothier than anyone would want...").
I remember reading about it and suggested drinking seltzer(that stuck in my mind from a thread).
But when I searched for it I didn't see tips to help with it.
I know from speaking to Wanda that it can be a real problem in terms of stomach upset.