Looks like cordyceps mushroom is good for it And Reishi
SMOKING - if studies show smoking causes nf-kappa b upregulation - then reishi will help
https://www.ncbi.nlm.nih.gov/pubmed/18204136
Cigarette smoke-induced NF-kappaB activation in human lymphocytes: the effect of low and high exposure to gas phase of cigarette smoke.
COPD
Targeting the NF-kappaB pathway in asthma and chronic obstructive pulmonary disease.
http://www.ncbi.nlm.nih.gov/pubmed/18950657
Bronchial asthma, chronic obstructive pulmonary disease and NF-kappaB.
http://www.ncbi.nlm.nih.gov/pubmed/19275599
great article -
Pharmacological and therapeutic potential of Cordyceps with special reference to Cordycepin
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3909570/
Emphysema and COPD
http://www.drweil.com/drw/u/ART03117/Emphysema.html
Traditional uses and medicinal potential of Cordyceps sinensis of Sikkim
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3121254/
The Effects of Cordyceps Sinensis and Lingzhi on Cardiovascular Fitness and Cognitive Function
http://clinicaltrials.gov/ct2/show/NCT01718548
Bronchiectasis
I found studies showing that down regulating nf-kappab helps people with Bronchiectasis. Mushroom that should help is reishi since it is known to down regulate nf-kappab
Azithromycin Suppresses Activation of Nuclear Factor-kappa B and Synthesis of Pro-inflammatory Cytokines in Tracheal Aspirate Cells From Premature Infants
http://www.nature.com/pr/journal/v62/n4/full/pr2007259a.html
Macrolides attenuate mucus hypersecretion in rat airways through inactivation of NF-κB
Pulmonary vascular dysfunction in end-stage cystic fibrosis: role of NF-κB and endothelin-1