The next step is going to be discussed when there is a need for it.
I coped very well with the chemotherapy. Got some side effects that were unpleasant but not debilitating - nothing serious. The main thing to watch out for is the risk of infections during the periods of low white blood cell count. I had no issues with that but some can get quite poorly. Your dad will be given advice and a 24 hour call number in case of any issues. You are right in that everyone is different but the nurses at the MacMillan Day Unit, where I had the chemotherapy, reckoned that most men sail through it.
Meantime, as I have been told by two separate doctors and my consultant, all at the cancer centre, that they are keeping an eye on everything that needs to be watched and that I should try and forget about it and just enjoy life. I can honestly say that I am enjoying life - but forgetting about having cancer is a bit of a tall order, although I have reached a stage where I don’t actively worry about it. I hope your dad, you and your family get to that stage in the not too distant future.
Dave