I have a two and a half year old female that is turning out to be a nice dog. About two months ago I was running her and after about an hour I couldn't hear her with the rest of the pack. Concerned that something had happened to her I quickly got to them. She was right there in the middle of the race but her voice seemed to be strained and was hard to hear. I rested her for about a week but it was still the same. Took her to my vet and he said it was from over barking and steroids would clear it up. First ten days of steroids there was no change. Increased the dose and all together she has been on steroids for a month with no change. Questions I have are is her vocal cords/throat permanently damaged? Is there any other treatment I can try? Should I consider breeding her? Any input Would be appreciated.