Rett
if your dad doesnt drink,he will be in real trouble soon.Dehydration is serious in anyone,let alone someone who is sick and older.His blood chemistry will be all over the place,leading to confusion,kidney problems,constipation,to name but a few.To monitor his fluid intake and out put,keep a chart,and measure how much he drinks and how much he pees ,then take it with you to your next doctors visit.
The phlegm is a nightmare,and a common problem much debated on these boards.Use the forum search engine to get advice on this.
liz