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Why does my dog suddenly have a bumpy rash all over his skin?

Updated on September 23rd, 2025

Pet's info: Dog | Chihuahua | Male | neutered | 1 year and 8 months old | 21 lbs

My dog suddenly has a bumpy rash almost all over his body. What should I do?

1 Answer

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on September 23rd, 2018

Hi, thanks for using PetCoach! Poor Chuggers!

It’s hard to say if the red bumps are pustules (white center) which indicates a bacterial infection. The rash could be a contact allergy or hives. I would start Benadryl and if the bumps are still there Monday take him to your vet for an exam. Steroids, antibiotics or a topical medication may be needed.

I wish Chuggers the best!

https://www.petcoach.co/canigive/dog/benadryl/
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