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My dog has a red rash after playing outside. What should I do?

Updated on September 23rd, 2025

Pet's info: Dog | American Staffordshire Terrier | Female

My dog was playing in a field and now her belly and back legs are covered in a red rash. She doesn’t seem to be bothered by it but it looks horrible. I don’t think it’s poison ivy because I’ve touched the area and I’ve had no reaction. I’ve been giving her Benadryl. Anything else I need to do?

1 Answer

Most Helpful Answer

Dr. Strydom, DVM

Answered By Dr. Strydom, DVM

Veterinarian

Published on May 21st, 2023

Hello, thank you for using PetCoach.

Poor Snow! Her skin looks really reactive. I really think you should take Snow to your vet for an exam at your earliest convenience. She may need oral antibiotics or some anti-inflammatory medications. I don't think it is an emergency though. To me it looks like a contact dermatitis (allergy). Poison ivy is possible but it is actually pretty rare in dogs.

Benadryl is fine to give but you need to make sure you are giving enough. Dogs take a MUCH higher dose than we do. The dose is 1mg/pound of body weight. For example, 25 pound dog should get one 25mg capsule/tablet. If she is 50 pounds, then 2 of the 25mg capsules. You can round up if needed as it is pretty safe to give. She can have that every 12 hours.

Topically, I suggest you put this on the affected areas until you can get her to the vet:

( https://www.petco.com/shop/en/petcostore/product/vetericyn-plus-hot-spot-antimicrobial-gel-for-dogs )

Hope this helps. Best wishes.
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