My father 65 age has tongue cancer he was diagnosed 5 and 1/2 months back with stage 2 tongue cancer. His heart EF IS 22 hence he was not fit for surgery or any major treatment. He is hypertensive and diabetic and has gone under bypass surgery 5 years ago and brain stroke 2 years ago. He's home with no treatment only on pain killers still he has immense pain. Any treatment cldn be done given his heart condition he's on bed. What should be done? How long does he have? Pls help us.