My cat is sixteen and somehow she got into something a few years back and we thought she would for sure die and although I took her to vet and got her some better, just in the last year I started using contact lens drops, (Wal-Mart) equate brand (lubricating & rewetting drops my daughter told me to use for her black sore eyes. I did this once a day and not only did her eyes get well she stopped the wheezing she had done for years. I went off it when she got better but then had to again a few times but now it has been months. Somehow that medicine got in the sinuses (lungs too?)I don't know but I tell you this is worth trying. Make sure you get the kind that can go in the eyes, some lens drops don't. I wrote exactly what is on the bottle. Good luck, I am sure it will help some. My cat is in my hubs here about cats, look how good she looks for 16 and she looks even better now!