I'm sorry to hear about your mother's situation. Here's a prayer you can use:
Heavenly Father, we come before You with a heavy heart, seeking Your healing power for ###, who is suffering from breast cancer and is currently in the hospital. We ask that You wrap Your loving arms around her...
Emmanuel I am asking for a prayer for the healing in my family my sister has breasts cancer my young brother is mentally ill I believe jesus Will heal and deliver us in JESUS CHRIST NAME AMEN