i have left lung collapse 2 yrs back...and my left bronco is severely shrinked...it is so shrinked tat doctors say they cant even put a stunt to open it....so i have to live like tis......bt my right lung is healthy and enlarged...due to tat i fells almost normal...i have a big problem of phelgum(mucus) which is sometimes yellow in shade and sometimes brownish....i want to get rid of tis...have done a lot antibiotic course.....is there any other solution...or any physio therapy..plz help