I also wonder why the doctors would agree on Chemoradiation if they thought the cancer was so bad, radiation would not do any good, which together is really curative treatment, not palliative? Also, I was in a somewhat similar situation, had similar thoughts, whereby after a devastating 5 days of only induction chemo, all my treatments were stopped such as the rest of the 2 induction chemo's, and the Chemoradiation that was to to follow, not by choice from me or really by the doctors, but saving my life was a priority instead, and cancer became secondary even at stage 4. I wasn't able to do any further treatment until a year later, which probably impacted my recurrences.

Maybe your father does need a break, not too long, to collect his thoughts and strength to fight this disease. Maybe a 2nd opinion to help. As your signature says, .."As long as we have hope, tomorrow awaits."

Good luck with everything, and with any decisions made.