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Dog has red bumps after bath. Is it an allergic reaction or serious?

Updated On September 23rd, 2025

Pet's info: Dog | English Bulldog | Female | spayed | 3 years and 2 months old | 56 lbs

Hello, I recently washed my dog, who is a 3 year old English Bulldog. It's been a few hours since washing her and she has developed large red bumps all over her body. She does not look to be in pain, is acting normal and even playing, but I am wondering if this is possibly an allergic reaction or something more serious? Also, would something like Benadryl be ok to give to help this?

2 Answers

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on November 3rd, 2019

This is probably an allergic reaction due to shampoo you used to wash her. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take her to the vet in order to get an antihistamine injection.

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    Answered By Lindsey Edwards MVB, BSc, IVCA

    Veterinarian

    Published on August 9th, 2020

    These look like an allergic response, which may be to bug bites but could be many other things. Many anti-parasite shampoos are irritant and can aggravate sensitive skin. If she is itchy and restless she would benefit from antiinflammatory medication but in most cases they will resolve over 24-48hours. Monitor closely for any changes in breathing which can be a rare but serious complication

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