question: Dear Dr. I am suffering from cough (productive) since 3 weeks and tried Roxid, Augmentin 625 and cephalexine antibiotics for 3 days each. Chest X ray is clear, sputum for AFB is negative. I do not have temp. except cough. I have acidity problem. Now doctor has priscribed Zedocef CV 200 for 7 days and Deriphyllum - 150 for 7 days.Please inform me what may be the problem with my cough.  My e-mail ID is  YYYY@YYYY