I just have a minute before I must become productive, so I'll post my favorite cough remedy: drinking lots of water. Seriously. Many years ago, when I was taking allergy drugs, I was about to fly home to visit my parents, but I had a nagging cough. I went to the drug store, looking for some cough medicine. Every bottle I picked up said, "Do not take if you're taking <drug A>" or "Do not take if you're taking <drug B>." I was taking both drug A and drug B. I explained the problem to the pharmacist. He told me that the best thing for a cough was drinking lots of water. I was taken aback, but since I couldn't use any of the conventional cough syrups, I thought I'd try it. It worked! No coughing when I visited my elderly parents. It didn't help the family squabbles, but it took care of the cough.