Pulmonary rehab. If it is available many communities offer a program called pulmonary rehab. This is a graded exercise program suprevised by trained respiratory and physical therapists and in some cases physicians. COPD patients are also educated in specific breathing techniques and about their disease in general. It seems patients who go through the program do overall better.
Deep slow breaths. Deep slow controlled breathing will help the healthy parts of your lungs operate more efficiently, making up in part for the lung tissue damaged by COPD.