I'm sure that's a very silly question but as a newbie to COPD and still trying to get my head around it I was wondering what causes it if you don't have an infection.
Before being diagnosed and prescribed an inhaler I was experiencing a mucousy cough, some days more so than others. Have had my inhaler almost two weeks now and if I use it 3 or 4 times a day I don't seem to produce so much. Yesterday I only used it twice and today I'm more mucousy than I have been for a few days. So it seems like the inhaler (Salbutamol) is doing something to reduce the mucous, but I'm just wondering why it's produced in the first place.