Hi. Over the past 2 weeks, after a flight to the East Coast from Idaho, I have had a cough that has persisted. I took it to be a virus I had picked up on the plane. Figured it would last a week and be done. Over this period, it has progressed into my sinus....to the point where I am now taking over the counter sinus relief every 4 hours. Although it seems to clear up the head a bit, it does not ease the cough at all. Hearing in my left ear is down a bit, but I have always had a little hearing loss in that ear. Anyway, I suspect now that I may have an ear infection and that is draining down into my throat and causing the dry cough. Have not pain out of anything....just a persistant cough and head congestion.