chemo treatment

My father is stage IV lung cancer he had his first chemo treatment, he wants me to ask if his second treatment will be as bad as his first.  He has five more treatments to go, every three weeks.  He's convinced he's dying and not going to make it through this, we try to be positive with him but, he has fallen into a "no hope" frame of mind.  If anyone knows what we can do to give him reassurance please tell me, my family will do anything to help him.  The oncologist has given my dad a 60% chance of remission.