Hi Nancy,
I also suffered from nausea during the treatment and was told that it was mostly related to chemo rather than radiation. I had Cisplatin for 4 times on a weekly basis. I had the shot on Thursday and the doctor would prescribe enough anti-nausea drugs for me to take before meals. Friday and Saturday were the worst when I wanted to throw up all the time. Then on Sunday onwards, I felt better until my next shot. The drugs worked well on me and I remember vomiting twice only throughout the whole treatment. Of course my appetite was seriously affected but I forced myself to eat whatever I could.
As for the rash, I had similar experience when I was hospitalised for a morphine drip. The whole body was full of rash overnight and my oncologist thought that it was my reaction to the drug ( sorry I am not sure what drug was given to me through the tube other than the morphine). So he gave me a few shots of antibiotics,which helped get rid of the rash. Such situation lasted about 3 to 4 days, which made me very frustrated because the rash made me very itchy but I couldn't scratch.
If your husband doesn't have mouth sores, he should try to eat more now because most patients suffer from throat and mouth pain sooner or later.
Karen