How can i best support a friend whose mother is diagnosed with brain cancer?

If your friend is: Actually caring for her mother, she will need physical help as well as emotional help. But being a friend sometimes means simply being there. You do not know what she is goiong through, her feelings, or even the lationship she had with her mom. Listen. Your job is not to offer medical advice. Ask what you can do to help. Show up with tray of freshly bake cookies.