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Why does my dog keep getting lumps on her back after Benadryl?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 3 years and 7 months old | 50 lbs

My dog woke up with lumps all over her back yesterday. They went down with benadryl amd were almost gone last night. This morning she woke up with more new ones

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 28th, 2016

It sounds like Roxy is suffering from an allergic reaction. Given that the Benadryl isn't working, she needs to see a vet right away. She may need a stronger drug, such as steroids, to stop the reaction.

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