My puppy started hacking the middle of the night... Kennel cough. Took her to vet. Started antibiotics with 500 mg of Vitamin C and honey in morning and before bed. She stopped coughing the next night. Sorry, but folks at least take your dog to vet. Make sure there is not collapsed trachea, obstruction, etc. One person on this page asked what to give a pup with pneumonia.... TAKE THEM TO THE VET! I appreciate holistic and home remedies and use them alot. In fact my vet helps plan them, but to completely disregard vets and take the word of people you have never met on a web forum for the welfare of your animal is lacking in wisdom. I do the vet, apply appropriate veterinary items and do the holistic things they prescribe after our discussion.