I'll pray for your mother to be whole. There are things that God made, on earth that she can eat and drink that will heal her. In addition there are things that one has to stop eating and stop drinking for the effect s to come into full manifestation God will never leave us nor forsake us. I will pray that you come to find out what she needs to do about this. I would start by looking for alternative ways of battling cancer on the web. You said her immunity is strong. The is good. Now she needs for it to be even stronger so that the cancer has to leave. Prayer works all the time as you know for those who truly know God and I'm sure you do. How ever sometimes in our lives we have to change our habits if we want and expect supernatural change, healing, increase and so on as you may already know. Jesus is Lord and no one can take that alway from us and God has made a way, just for your mother. A way of total wholeness for her, with nothing missing and nothing broken. Thank you for praying for me in the past. I would keep saying and believing "The answer is on it's way in Jesus name". God bless you.
Father in heaven I thank you for educating us all of what our body needs to heal. Whether it is lack of forgiveness (and Lord you know I was in that situation many times). Whether it what we are not taking into our body on a daily basis or whatever it is. I thank you for word, your healing words of wisdom and your almighty hand that guides her and her mother over this, so that she will recover from cancer and be whole, not lacking any good thing that she can have as a child a God is suppose to have and we claim it now that her heart is ready to receive all instructions, clearly without any mistakes so that her mother will have a great testimony in her life like never before. In Jesus Holy righteous name I pray and call it done and thank you in advance.
Amen.