Support for Kennel Cough in Dogs

"My 12 year old lab got kennel cough from a puppy last summer and has never fully recovered. He has a constant wheezing and sometimes hacking cough, with labored breathing during/after walks. We have been using Response-Aid for a few weeks and already noticing a difference. His resting breathing is much smoother and he doesn’t wheeze as much as before. I am hoping we continue to see improvement as we keep using it. He likes it right out of the dropper but sometimes I put it on his food too." - Amber