Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

Why is my dog's red, itchy skin on all four legs bleeding?

Updated On September 23rd, 2025

Pet's info: Dog | Australian Cattle Dog | Male | unneutered | 54 lbs

My dog has red skin on all 4 legs. He has even had spots on his feet that will bleed. He seems a little itchy but doesn't to scratch constantly. It will be okay for one day then very bad the next. He is aggressive and cannot be taken to the vet. They have (without seeing him) prescribed two different antibiotics and neither worked.

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

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

2 Answers

Most Helpful Answer

Image profile

Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on January 4th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. It really comes down to figuring out what is causing his allergies so that they can be treated or the specific allergen avoided. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

Vote icon

3Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on July 24th, 2018

    Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. It really comes down to figuring out what is causing his allergies so that they can be treated or the specific allergen avoided. A secondary infection is likely and also needs to be addressed. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

    Vote icon

    1Pet Parents found this answer helpful

See More Answers

Related Questions

Petco Pet Education Center
Health & Wellbeing
What fish dog food helps dry skin if my dog eats Science Diet?
Is your dog's dry skin a concern? A certified vet offers expert advice on finding the best fish-based dog food alternatives to Science Diet for essential oils.
Updated on February 04, 2026
Petco Pet Education Center
New Pet
Why is my new pet biting? Is she stressed or scared in her new home?
New pet biting? A Licensed Vet Tech shares expert advice on how to gently acclimate your new companion to their home, reduce stress, and build trust. Get guidance for a happy pet.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My pet keeps scratching its ear. What's causing this problem?
Is your pet scratching their ear often? A certified Petco veterinarian explains common causes like otitis or infection and how to identify the problem.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My degu has a white bump in its fur. Should I take my pet to the vet?
Worried about your pet degu's white pustule? A certified vet discusses this potential skin infection, explains why not to pop it, and guides your next steps.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My pet's ear mite treatment isn't working. What else could it be?
Pet still itching after treatment? A Petco vet clarifies it may not be ear mites. Discover effective solutions like Revolution or consulting an exotic vet.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My rat is losing weight and has breathing issues. What should I do?
Dambo's weight loss, rough breathing, and mucus worry you? A Petco veterinarian addresses these concerning symptoms and recommends urgent professional care.
Updated on December 04, 2025
image
Have A Vet Question?

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

Book Now

Sponsored