We're caring for my 86 yr old father in law. He barely eats anything, I mean just a couple of bites of any meal. Says he's just not hungry. He drinks maybe 16oz of fluids a day. He has had diarrhea for 2 months now and the quantity coming out is way more than he is taking in. He has no desire to go to the Dr.. He has stated he just wants to be comfortable, no poking or prodding. We have tried over the counter meds to no avail. Is there anything that can be done?