Yes wait 3 months: If you quit smoking your lung capacity may improve and retesting oxygen need after 2 to 3 months is recommended.
Answered 4/18/2021
5.5k views
Yes and no: Depends on how bad your COPD is. By all means, stop smoking, exercise - pulmonary rehabilitation would be a god thing, and follow up with your doctor!
Answered 4/1/2019
5.5k views
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