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My dog is coughing up strange white frothy foam. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Boxer | Male | unneutered | 28 lbs

My dog keeps coffing up white frothy fome as if something is fermenting . Have you come across this before?

3 Answers

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on September 14th, 2019

Yes, significant irritation the the trachea and will cause them to cough up phlegm. Dogs will cough for many reasons including infections and allergies. If this is happening beyond 48 hours, I recommend to have Ozzy examined by the veterinarian for treatment which will help him to get better much faster. I hope this helps and please feel free to post any additional questions.

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Other Answers

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    Answered By Dr. Leigh, DVM

    Veterinarian

    Published on June 5th, 2017

    Wiley could have a mild case of kennel cough, collapsing trachea, heart disease, lung disease, or allergies. If the coughing continues or becomes worse then he really should be examined by a vet to determine the exact cause. Your vet can take an x-ray, if needed, to help diagnose and then prescribe medications to help. He may need an antibiotic, anti-inflammatory, bronchodilator, or other medications to help treat the cough.

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    Answered By Emily, DVM

    Veterinarian

    Published on June 5th, 2017

    This could be a case of tracking information, irritation of the esophagus, mild nausea, and sometimes even lung disease. If Wiley has any decreased activity, the coughing increases in frequency or the foam start of a bloody or yellow or black he needs to be seen by his veterinarian.

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