I was recently looking at an advertisement from this website and it had a product called Kennel-Koff that obviously treats Kennel Cough. My puppy Sam was diagnosed with pneumonia/kennel cough almost 2 months ago and has been on 3 antibiotics...he's still coughing. Everything else about him is great, but the coughing. It sounds like something I might try b/c nothing else is working. Does anyone have any experience with this?