2 of my grandparents have passed due to cancer. One of them was stomach and the other had cancer in the liver or something like that. My aunt has had breast cancer, got the operation and then a few years later it came back. She got another operation and is currently cancer free. My uncle has colon cancer and he's doing good with just treatments.
I heard that my aunt eats lots of seafood and all kinds of it. My uncle just stopped his partying ways and eats everything still. About the hair loss, I think the only option is a wig if you don't want to be bald. But you never know some chicks look real good with a bald head. Or a cool bandanna on looks pretty good too.
I wish you all the best and a FAST painless recovery. I know it can't be painless but I hope it's bearable and minimal. My prayers are with you and your husband!