@ David: HPV also causes genital warts, he was treated for that 20 years ago, yes they have check his slides for HPV, it was on the biopsy report. You are right as a dental professional, we only started hearing about the link of oral cancer and HPV about 2 years ago.
They have him trying Zofran oral dissolving tabs so its absorbed in the mouth, we'll see how that works.
NG tube is out, he would just vomit it out, so is the PEG because the food is still deposited in his stomach and would be vomited out. J tube is the only option if we need to go that route.
@Christine - the dead cells and thick mucous build up was really bothering him, he gags on it and vomits
better hydration and very frequent gargling and rinsing with club soda are helping, he kept down what he ate last night, he got sick once this morning but it was only mucous and bile.

He doesn't have alot of throat pain yet... I'll let you all know how we make out over the next couple of days
Thank you for your comments and info!

Josee