I had TPF Induction Chemo, which is Cisplatin, Taxotere, and 5-FU. The first two chemo's are given in one day, the 5-FU is given over 4 days with continuous infusion. Erbitux, which I had with another Tx, was given in one day along with Taxotere, so the 5-FU may be the reason. Erbitux is fairly new to be added to IC. It was originally PT 25 years ago, and then TPF was found to be better, and still say it is in a recent report I read. IC chemo is still controversial because of the toxicities, but quite effective, and hopefully side effects are lessened with adding Erbitux.

I was only able to do one cycle, 5 days, in 2009, and that killed all my cancer for 8 months, but came back, as I later learned it usually does in less than a year, but the cancer never came back to the primary, tonsil, only the lymph nodes, so hopefully it does the same for your father, and can be managed from there.

Good luck, and best wishes.