My father in law has kidney cancer, has not had any treatment in 1 year. 3 days ago he could walk, now he is bed ridden and they had to put a diaper on him. They started him on 1 drop of morphine every 3 hours for pain but he has only had 2 drops. Today is day 5 with no food and only sips of water. How long can he survive this way as I am 1500 miles away?