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My Shar Pei has bumps after flea treatment. Allergic reaction?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered

Hello We noticed our shar pei was scratching a lot so we put a flea treatment on him and then another and now we've noticed he has big bumps under his belly, on his legs and around his eyes. We are not sure if these are down to flea or if he's having an allergic reaction to the treatment. Any advice would be great. I'm worried something bad may happen to him

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on July 1st, 2017

Oh no, poor Archie! Flea treatments at most should only be given two weeks apart, so if you gave them to him in less time than that, then yes it could be a reaction to the treatment. Shar peis can also be prone to allergies, and that could be cause of these big bumps on his body. You can giving him an Epsom salt bath or an oatmeal both to see if that helps with the bumps. If not, I would take him into the vet. The vet can diagnose what is causing the bumps and how best to treat it.
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