Herceptin Forever???

[Dakini52]

I'm a little confused and am hoping someone here can help me out. I had a local recurrence to the chestwall 3 years ago. Had surgery, radiation and have been on Herceptin since then. My oncologist recommends that I remain on it indefinitely. I have only heard of this being done when a person is Stage IV. I'm looking for information that might help me understand this. Although I love my oncologist, he recently told me that when he was in medical school any recurrence was considered metastatic. This is not at all what my research of the subject tells me so I need your help