Brain Mets and Radiation

[hmerch]

Hi All,
I have been a lurker on this site for quite some time and would like to thank all of you for the support your posts have provided to me.

My mother was diagnosed with breast cancer in 2004 which she beat with a lumpectomy, chemo and radiation.
It came back in 2005 with mets to the liver. She beat this too with Taxotere, Navelbine and Herceptin.
Now she has been diagnosed with mets to the brain. The doctors say its numerous mets and she wil be undergoing 5-10 rounds of radiation.
My question is ...how effective is radiation and is it the only thing that can be done at this time?

Worried...