Unfortunately, I have very little experience with asthma in dogs, so I'm not sure what is available for treatments other than the steroids. You might want to start a new thread in the health forum and mention in the title something about treatments for asthma in dogs. There is a vet that posts here now and then and is very helpful...name is Dr. Lee. You might try PMing him for advice as well...though I'm not sure how often he signs on.
The wheezing could be caused by heartworm--and a blood test would be needed, but it's a fairly inexpensive and easy thing to do. If you suspect heartworm at all, you should have the test done ASAP since heartworm can be fatal if left untreated. Has Dopey been on heartworm preventives at all or are you in an area where it isn't too prevalent?
As for pictures, they have to be less than 100KB in size if you're uploading them from your computer. Do you need help in cutting them down to size?
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