Hi Amy,
and welcome to the forum. You are very forunate for him being treated at one of the best CCC's in the US.

I didn't have taxotere or Erbitux but I did have IMRT and Cisplatin and it was a very rough treatment protocol. My mouth sores started 2-3 weeks into it and got progressively worse until about 1 month post Tx. The Cisplatin will have the biggest effect on the mouth sores. I was very sick from the Cisplatin as well but other than a couple of emergency visits for rehydration, I was never hospitalized. I came close though, I am sure.

Just remember that everyone responds differently to treatment so his response may be much better than mine or other posters.

Even if he gets a PEG tube he should try to continue to eat and drink orally - it helps a lot down the road to keep those muscles working. I ate and drank the entire time because I didn't get a PEG but not without great difficulty.

He just has to take it one day at a time. I had from fair to horrible days but that is all past now.