Herceptin 4 years out

I just found out that a friend of mine who is 4 years out from BC diagnosis is Her2+++. She is stage 1, node negative, er/pr+, 1.7cm tumor and I think, grade 2. Treated with TAC, rads and one of the AI drugs. she just recently had a discussion with her doctor about being treated with Herceptin and they decided, probably not. I just wanted to see what you gals think. I'm inclined to tell her to, "go for it", even though it has been 4 years.

I look forward to and appreciate your thoughts.

Thanks,

Karen