For me, the worst thing about catching a cold is not a sore throat or a runny nose. It's the cough!A cold usually makes me feel uncomfortable for about a week. But once I catch a cold, I often develop a stubborn cough that lasts much longer.This has been happening ever since I neglected a bad cold several decades ago. I guess my cough has never really forgiven me!I remember a family trip to Swit..