[CherylS]

First of all, if your friend had an affected lymph node, she is not stage 1, she is not DCIS, which is stage 0, she is stage 2 and should have received treatment immediately following her surgery. I am HER2+++ and 75% ER +. It is less common, but not rare to be both. Anyone who is HER2 + is now receiving Herceptin, regardless of stage. She should absolutely be on either Tamoxifen or an Aramotase Inhitbitor, depending on whether she is pre or post menopausal. And the affected lymph node combined with the HER2 status warrants chemotherapy, 4 rounds of AC, followed by Taxol, which should be administered for the first 12 weeks weekly in combination with the Herceptin.
The Herceptin should then be continued for the remainder of one year, typically every three weeks. She needs a new oncologist and quickly. Her double masectomy should eliminate the need for any radiation.

Best wishes to her. You came to a good place for help. I'm sure others will respond.