ace333, my mother had cancer and chemo helped her out so much that it extended her life many years. There are many success stories of people beating cancer successfully with chemo. I would allow your dad to choose what he and his doc decides is best. We do not know what is going to happen. As I said many people do recover on chemo. The circumstances for each person is different. The type of cancer has a lot to do with the progression. I wish the best for your dad and I also wish you peace.