Hi all Tess will be 18 in a couple of days and has shown symptoms of a collapsed trachea since she was about 15 and a few months ago her cough was almost constant. She was prescribed codeine which helped but still had some days and nights when the cough was constant. I was buying expensive food for senior dogs but it seemed quite sticky and thought that I would try making my own. That was about 3 months ago and the improvements were almost instant and now she barely coughs. My recipe consists of chicken breasts, squash, carrots, broccoli, peas and brown basmati rice which are slow cooked. Just sharing as if you are struggling for a solution as I was, it is worth trying.