Hello and hope you are doing well.
COPD is Chronic obstructive pulmonary disease, which a chronic disease and causes symptoms of cough, breathlessness and wheezing. The commonest cause for COPD is smoking. The lungs age with smoking as in comparison to the person’s age. If you stop smoking at this point, the lungs are not damaged any further, though the damage that has already been done cannot be reversed. So, giving up smoking would be first step towards controlling COPD.
Along with your medications you could try warm salt water gargles, steam inhalations and breathing exercises for an improvement in your symptoms
Hope this helped and do keep us posted.
http://www.livestrong.com/article/368199-respiratory-medicinal-herbs-for-copd/
This article lists herbs that have been used to help COPD.