Hi Sir, I feel my windpipe could be inflamed. Yellow thick gel-like mucus with a little blackish/reddish blood continuously comes out from the centre of my lungs which I believe is from my windpipe. I have been coughing and sneezing non-stop for 10 years due to extremely hazardous air pollution. I am also suffering from cataracts and pharyngitis due to air pollution. Since childhood, I have had perennial allergic rhinitis. I had a nasal operation about 20 years ago where extra tissue and bone growth were removed from my nose to treat my allergic rhinitis. Current doctors tell me that I should not have undergone this nasal operation since technology was very backward then. I'm now 47 and also have other conditions like spinal and cervical spondylosis, spinal and cervical disk bulges as well as knee pain in both legs and tendonitis in my elbows. What should I do now? Thanks.