I was just diagnosed with COPD, my PCP has prescribed Breo, Proair, albuterol with nebulizer and I take Claritin and singular for asthma. My PCP, when i asked said these meds will help slow down the progression of COPD. I just read that the meds really don't slow down the progression but that stopping smoking will...I've never smoked so how do I slow down the progression of mine?