Hi Sandy,
you're doing the right thing to ask for help here. I hope Newport will answer with advice regarding a safe way to stop the cancer from spreading.
If the cancer is in the lymph wouldn't it be in the entire body as the lymph circulates? There are certain frequencies here that you can use to unblock and move the lymph, which may be some help. Also look into the filariasis scripts that help remove the small worms from the lymph ducts. I don't know how safe this is but it treats mainly the lymph. YOu should also try and unblock the liver.
Good luck! Let us know how he reacts to frequencies.