It's just possible that walking through a half mile of dusty construction is not the smartest thing I have ever done for my lungs. I have now developed a honk-y sounding cough. buggers. I just downed a cough pill (anti, not pro) and I'm slurping water like crazy. The best thing for me to do for a cough is make it stop. Coughing makes coughing worse in my case.