@burcinc-- That's interesting. Is honey safe for dogs? I always thought it's bad since it contains sugar and sugar is bad for dogs.
My dog picked up kennel cough from the playground. She loves playing with other dogs. I didn't take her to the vet, but I did ask my homeopathic doctor for help. He prescribed very small doses of homeopathic medicine for her. I don't remember all of them but it was phosphorus, bromium and a few others. It definitely worked.
Aside from the cough, my dog was also vomited a lot and couldn't keep food down. So I gave her warm milk everyday. It seemed to settle her stomach and helped prevent dehydration.