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

What causes a rash under my dog's leg and how can I treat it?

Updated on September 23rd, 2025

Pet's info: Dog | Boxer | Female | spayed | 1 year and 2 months old | 45 lbs

Sadie has a rash type thing under her front right leg. What is it, how bad is it, and what can I do for it?

3 Answers

Most Helpful Answer

David Elbeze, DVM, MRCVS

Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on May 19th, 2018

This is probably caused by an allergic reaction. first of all make sure you de-flea Sadie regularly every month with a high quality spot on (ex. Bravecto) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or Cytopoint or Apoquel in order to stop the allergy.
Vote Icon1Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Answered By Dr. Strydom, DVM

    Veterinarian

    Published on April 9th, 2019

    I would suggest allergy testing so you can find out what the underlying cause is of her allergy. This should be done through a veterinary dermatologist or a vet that has a special interest in dermatology.

    Luckily it does not seem very severe at this stage but of course, you don't want it to progress further. It does not appear to be flea related in my opinion.

    ( https://lowercolumbiaveterinaryclinic.com/services/dermatology/ )

    ( https://www.petcoach.co/article/allergy-testing-immunotherapy-in-dogs/ )

    Vote Icon

    1Pet Parents found this answer helpful

  • Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on February 19th, 2019

    This is probably caused by an allergic reaction. first of all make sure you de-flea Bear regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or cyclosporin in order to stop the allergy.

    Vote Icon

    6Pet 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