To relieve congestion, fill a bathroom with steam by running hot water for five to 10 minutes and placing the dog inside. Putting a vaporizer in the dog's sleeping area also provides relief by moisturizing the bronchial tubes.
It is not recommended to give a dog cold or cough medicine because it is easy to misjudge the proper amount and potentially administer an overdose of medication. Instead, prevent congestion by limiting the dog's time in cold weather and keeping the dog warm and dry. Warm, healthy foods, such as chicken soup, provide comfort as the immune system heals the dog's respiratory issues.