bronchitis
"For about 10 days now, I had a VERY bad cough, and severe congestion in my lungs (coughed SO much till I thought I were going to actually break a rib )...went to my local emergency room, where the attending doctor sent me home with a 'Z Pack' (5 day regimen of the Zithromax, PLUS a bottle of GUAIFENSIN cough syrup). I'm now on my third day of these antibiotics and am not, thankfully, coughing as much as I did."