I am going through no interaction with my HU family for ages. Well I have my ambulatory O2 at long last and just in time for summer I felt I was going to either be stuck indoors or at least not far away from my machine.
As for dry bogies the respiratory nurse has given me a sea salt nasal spray by the name of Sterimar nasal hygiene once you get into using it all seems well it does state that it works better if you can stay of O2 for at least 1/2 an hour.