My cat Mollie Rose was diagnosed with kitty asthma. She doesn't wheeze all the time so I think it's mostly allergies.

She does have this problem with runny eyes, stuff nose and sneezing. When she sneezes, it's not once, but 5-10 in a row!! I give her a half a tablet of Chlortrimeton a day. It helps alot.

I was given Prednisone to give her for any wheezing. Only problem with that is, if you give Prednisone for long periods of time, it suppresses the immune system.