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My dog is making a nose sound after heartworm shots. Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 9 years and 7 months old | 11 lbs

What are the most common/normal side effects of the shots for heartworm treatment on a dog? My dog recieved them a week ago and I just noticed today him making a sound similar to as if you were trying to blow something out of your nose, he kept doing it too. Should I be concerned?

1 Answer

Most Helpful Answer

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Answered By Daniel Fonza, DVM

Veterinarian

Published on April 15th, 2018

What you are seeing is not typically a side effect I've ever seen in a dog receiving this treatment. It may be that Charlie is fighting an upper respiratory infection or has irritation in the sinuses. If this does not resolve on its own, I would recommend having a veterinarian examine Charlie so that the most appropriate diagnostic and treatment recommendations can be made. I hope this helps! Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

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