C.R.
Hi J.,
I am so sorry to hear about your brother. I used to work for a wonderful organization called The Wellness Community. There is a local Arizona branch in Phoenix and there mission is to provide emotional support, education, and hope for people with cancer and their families. All of the services are free for your brother and your family. Please check it out. It is a great resource. Particularly ask about Family Circle. www.twccaz.org is the website or call ###-###-#### and ask for Christina.
I am no expert, but I would be honest with them to the point that they want to hear. If they are asking questions, don't lie because it can make it more confusing for them. I would find a councelor that your family can trust to help you with the issues also.
My heart goes out to you. God bless you.
C. Robles