FINALLY got a diagnosis on Bella and her multiple bouts of pneumonia and chronic coughing / sneezing. She has chronic bronchitis and the canine version of COPD. She's nearly 1 week into being on a steroid inhaler twice a day. So far it seems to be helping! her sneezing and coughing is dramatically reduced. Hoping this is the solution we've been looking for to keep her going a bit longer. She seems to tolerate the inhaler pretty well. She fought it the first day but now that she knows it means treats at the end, she's into it.