My dog contracted kennel cough from neighborhood dog. Cough gradually was getting worse after a weeks time. Found this remedy and it worked after one dose. I dissolved 1 tsp. of raw honey in warm water, added a few more ounced of water to total about 6 oz. Then added 3 drops of store bought hydrogen peroxide. He wouldn't drink it so a broke up pieces of bread in the bowl with it and he lapped it up. Coughing stopped immediately and didn't return. I did give him a second dose about 6 hours later to make sure. That was 1 month ago.
Thank you for posting the recipe! It worked wonders for my 12 year old pomeranian who contracted kennel cough from the vet's office. Did two doses 6 hours apart and no more cough.