Was put on prednisone , proair , albuteral , zpak , cough medicine w/ codeine , but I still have so much mucus , my breathing sounds are rattle rales , wheezing , and my O 2 is at 93 , I am a medical tech , I know as soon as I get winded I won t be able to breath , how can I get rid of mucus , tried mucenex ,no good still have 2 days of pred to go any suggestions ? Been to pcp 3 tx !