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My dog is coughing, has watery eyes, and trouble breathing. Is it allergies?

Updated On September 23rd, 2025

Pet's info: Dog | Beagle | Male | neutered | 15 years and 6 months old | 60 lbs

My dog is coughing so much that he’s coughing up saliva and has had watery eyes lately. Thinking he has allergies? He is coughing so much it’s hard for him to catch his breath.

1 Answer

Most Helpful Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on May 21st, 2018

I am sorry to hear about Bob. I would definitely recommend getting him to the vet as soon as possible. If he is having difficulty breathing tonight I would take him to an emergency vet. There are many possible causes of coughing. Allergies can occasionally cause a mild cough but we don't often see coughing as a result of allergies in pets (in pets allergies tend to manifest more as skin problems or sneezing) and in those cases the cough is more mild. We would worry about infections with bacteria or virus (including pneumonia in severe coughing), heartworm disease, heart disease, and lung tumors to name a few. Bob needs to have the vet examine him, listen to his heart and lungs, and most likely take x-rays of his lungs to check for changes to the heart and lungs. The results of the exam and testing will help determine his treatment needed. Best of luck to you and Bob.

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