Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

My dog has a rash and open wound after new shampoo. What now?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 65 lbs

My pit mix had many small bumps on him after we tried a new shampoo. They have mostly gone down but there is one larger open wound/bump on his neck. Dont know how to help.

1 Answer

Most Helpful Answer

Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on February 4th, 2018

I would be worried that Java had an allergic reaction to the new shampoo. We will sometimes recommend using Benadryl to resolve the small bumps if we suspect they have occurred due to an allergic reaction.
https://www.petcoach.co/canigive/dog/benadryl/
However, if the larger bump is open, then it may not respond to Benadryl. You certainly want to prevent Java from licking or scratching at the wound if it is open because he will make it worse. There are topical salves and medications that you can put on open wounds (https://www.petco.com/shop/en/petcostore/product/dog/dog-health-and-wellness/dog-wound-sprays-and-ointments/vetericyn-animal-wound-and-skin-care), but I would probably recommend having your veterinarian look at it first to determine how deep it is and if it needs oral antibiotics to resolve.
Good luck! I hope that was helpful. Thanks for using PetCoach.
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

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

Share

Styled arrow button