Hepatocellular carcinoma and nexavar

hello my Dad has recently started nexavar treatment. He is back at home with me now. I don't know what to expect after reading all of the horrific possibilities of side effects. Every day I'm asking him, what do you feel..how are you..does it hurt. I'm really afraid of how the side effects will progress. He's on 1 pill daily now and will progress to 4 pills daily...what should i expect? Will I need to eventually wash my Dad? Will he lose the ability to go to the bathroom hisself? I'm afraid and can not tell him this at all. I asked him to come and live with me and now I'm just waiting for what will happen.