My fiancé has been coughing uncontrollably every night for the past 4 months. He is 23 years old, 5'9", about 140 lbs., and has been told by his dr that he has walking pneumonia. He has been prescribed antibiotics, cough syrup, allergy medicine, mucinex, nasal sprays, and inhalers and although they suppress the coughing at times he still does not seem to have gotten rid of the coughing. His coughing is accompanied with phlegm and has also caused him to throw up due to the extremity. He does smoke cigars as well. What is this!?