Have them check his heart. Also could be kennel cough but he needs a different Antibiotic. Sometimes the antibiotic they give him does not work. I would think if Collapse Trachea he would of had symptoms of coughing way before 8 years old I had a dog with it and he coughed since he was a puppy. Also could be tonsilities, Make sure they check his throat. Good luck and keep us updated. |