Petco Text Logo
Petco Pet Logo

My dog has sudden bumps all over his body. Is it an allergic reaction?

Updated On September 23rd, 2025

Bumps all over his body he woke up like this

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

4 Answers

Most Helpful Answer

Image profile

Answered By Dr. Strydom, DVM

Veterinarian

Published on July 24th, 2022

Hello, thank you for using PetCoach. This looks like an allergic reaction. It would be best to get him to a vet for an exam. You can try to give him some Benadryl but I doubt it will strong enough to counteract a reaction that is this severe. The Benadryl dose is 1mg/pound of body weight by mouth up to every 8 hours. Example: if he is 75 pounds you would give him 75mg (3 of the human adult 25mg capsules). Yes, the dosing for dogs is much higher than dosing for humans. ( https://www.petcoach.co/canigive/dog/benadryl/ ) I hope this helps. Best wishes.

Vote icon

1Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on August 7th, 2017

    This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take Junior to the vet in order to get an antihistamine injection.

    Vote icon

    2Pet Parents found this answer helpful

  • Image profile

    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on March 17th, 2018

    This is probably an allergic reaction due to an insect bite or a plant outside. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take Zeke to the vet in order to get an antihistamine injection.

    Vote icon

    1Pet Parents found this answer helpful

  • Image profile

    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on August 10th, 2017

    This is probably an allergic reaction due to an insect bite or a plant outside, it could also be something he ingested. those reactions tend to resolve within 48 hours without treatment. if the swelling becomes too large or if your dog is lethargic, take Brownie to the vet in order to get an antihistamine injection.

    Vote icon

    1Pet Parents found this answer helpful

See More Answers
image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored