My family is very worried about my father's state of mind. Today is the last chemo treatment. He has throat cancer {inoperable} and has had chemo for eight months with thirty something radiation treatments over the summer. He is just the shell of the man he used to be. He reminds me of a very old man in a nursing home. Confused all the time, lots of blank stares. Is this normal? He hallucinates too. My mother fears the radiation and chemo has fried his brain. She says she is afraid he will never come back. Today starts the very last chemo and last radiation has been a month ago today. Will my dad come back? Is this temporary? Thanks for any input