Salaam,
Noor Tv posted this vazifah on their facebook page that heals any sickness be it cancer or something else. It`s worth a try. I have read it and it works for me. I have even told it to my family in Pakistan for my Aunt as well. In sha Allah she will also get shifa from this. Sharing it with you, in case you need it or someone you know needs it. Keep sharing:) JazakAllah kheyran katheeran.