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Why does my dog have red bumps after her heartworm shot?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 4 years and 3 months old

My dog had red bumps all over her body and she just had the heartworm shot, what can I give or put on her for the bumps to go away ?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on October 30th, 2016

If Bella has had the red bumps appear all over her body after having this shot, I would be concerned that she is having an allergic reaction to the shot. Allergic reactions can progress to respiratory difficulties, so I would take Bella into a vet now for treatment. She may need steroids to control the reaction.

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