Lung problems have been a big deal for me. Something I've learned - our bodies do most of their really valuable healing at night, particularly when sleeping, and according to traditional Chinese medicine, at around 10pm is optimal.
So one things seem to make a big difference with lung stuff, in my experience - creating a "clean room" where you sleep. Medically speaking, a true clean room is very hard to create and takes a lot of care and some equipment. But you can make your own home version by keeping your bedroom very clean, dust regularly, have hard surface flooring if possible, and don't bring shoes, unwashed (like worn today even) clothes, or much of any outside stuff into that room. Also keeping the door closed, then add filtration of some sort - minimally a HEPA, or if affordable a charcoal based filtration. If you want to be really careful, you only go in the room after showering, too. It's also best to not have plants with soil in this room, as molds and such grow in their soil. I'm not against plants in the house in general - just not in the clean room. Tillandsias would probably be fine.
This setup can do wonders. If you are spending 6-8 hours a day (night) resting in your clean room that gives the lungs an body an amazing chance to recover from the day. Normally I live with the windows open at night especially, but if the outdoor air isn't good for some reason then the clean room method can give my body some delicious recoup time.
Another term for this is a sleep sanctuary. Here's a really in depth version of how to make one:
Biotoxin Journey's Sleep Sanctuary
Oh, and a couple more things... extra Vitamin C helps the lungs, too. People have cured their asthma just with that at times. Vitamin C and also glutathione can be nebulized: vaporized and inhaled with a nebulizer.
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