Sometimes asthma just cannot be avoided though. For instance where we live, there is a huge human factor for asthma, so sadly, our vet says that she sees a lot of cats with allergies & asthma. There are things you can do. We've jumped through hoops to get Josie's to go away and it just won't. Although we did move into a new house and she did go almost 8 weeks, which was longer than she had ever gone . . . that was great! We figured that the new carpet helped.

Good luck finding the cause for the cough. Still Sounds like asthma to me though.