I have COPD and have had it for 5 years. I was in the hospital for 11 days until it was 'controlled'. My pulmonary dr sent me home with oxygen 4 leaders and told me I would be on it 24/7 for life. I came home with a compressor and 5 canisters so I could use them when I went out. There was no way I was going to accept this. I started using a treadmill 30 minutes a day and did my breathing excerises. I took the 2 meds he sent me with. After a few weeks I gradually lowered my oxygen level to 3 and did fine. Later I lowered it to 2 then later 1 then only used it when sleeping. Finally I shut it off. Then I went to the dr. To say he was mad was mild until he listened to my lungs, did my plus ox and it was 96, when admitted it was 84! I then had a breathing test, which I passed. So he now calls me a person who beat COPD. I still take the meds daily but the weight loss and breathing excerises helped me and I haven't been on oxygen for 4 years. Good luck and if I can help please ask