J.K.
When I was diagnosed with breast cancer, my best friend was there for me. The thing that she did that I appreciated the most was treat me like she always had. We talked about regular stuff, not always cancer, cancer, cancer. I got tired of talking to people about it. It was nice to have someone who didn't view me as "different" just because I had cancer. Meals for the family when she's undergoing treatment and doesn't feel like eating, let alone cooking are a big help too. A gift card for her favorite "carry out" place is also good. That way she doesn't have to get dressed and go somewhere for dinner if she doesn't feel up to it.