I'm sorry your dad isn't getting better, maybe you could convince him of the merits of oxygen if you told him that you'd like to keep him around awhile longer and that he needs to think of you guys too (you know....guilt...the gift that keeps on giving!...turn the tables and use it on your parents instead of them using it on you!) I'm lucky, my parents both are very good about taking whatever directions the doctors give them. I hope that he starts feeling better soon. Please continue to keep us updated.