Information about Kennel Cough:
Kennel Cough (Canine) | Diagnose Dog & Cat Health Problems, Pet Health Information
Anytime you have a long lasting cough, it needs to be checked out. Allergies, pneumonia and even CHF can present as a lingering cough. If you haven't seen any improvement in the puppy's condition, it's time for a repeat visit and a more through exam. If the vet seems to be blowing you off, then it may be time to find a new vet.