If anyone could help this would really be appreciated. My dad has had a continuous cough for a couple of years now. He went to the doctors and a lung specialist, but no luck. the lung specialist said that he has a tear in one of his breathing passages or something like that, and when air goes though it triggers him to cough. He coughs continuously throughout the day. It's really bad when he wakes up. I was wondering if anyone had any other suggestions?