How old is she?
does she ever chew non food items?
how long is she coughing?
Please stand by while I type detailed answer.
how long is she coughing like this?
Cats do get athsma but it does not usually develope suddenly. This type of coughing is usually related to something stuck in the GI tract.I t can be as simple as a piece of string or thread or a hairball. Try upping the dose of the hairball remedy and also give her the oil from tuna. Feed her canned cat food instead of dry.Have your vet check or a dental issue like an abscessed tooth, swollen lymph nodes or upper respiratory or sinus infection.
Here is info on feline asthma:
discontinue any scented or dusty litters as well.
Please let me know if you wish to discuss this further and how she is feeling. I am happy to help.
I know you love your cat. Please read the private message I sent you. I look forward to helping you in the future.You can reduce the value of your question to the minumum which I think is five dollars.