Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

Why are my senior dog's puss-filled sores not healing or closing?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | spayed | 55 lbs

My dog is a senior (about 12) and she has been breaking out in sores. They are on her back, tail, eye, and throat. They produce puss and aren't closing up. We took her to the vet when she was very young because we started finding lumps on her back but they only said they were calcium buildups and it was a pretty natural thing for a dog to have!

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 Karly Macon, DVM, MS, CVA Certified Veterinary Acupuncturist

Veterinarian

Published on May 7th, 2017

These may be benign sebaceous gland cysts that drain fluid periodically like pimples. Sometimes they get infected and require antibiotics. I often have owners use epsom salt compresses at home on these areas, but it would be safest to have your vet examine Darby to make sure that these lumps aren't some kind of cancerous tumors first.

Vote icon

1Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

    Veterinarian

    Published on

    This presentation could be due wide spread/multifocal spots of skin infection (likely to be caused by bacteria). A check up, appropriate disinfection and eventually antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. Disinfection can eventually be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid licking (if any). Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

    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
Health & Wellbeing
My guinea pig has a growing lump on its neck. Can it heal itself?
Guinea pig has a growing, hard neck lump? Worried about vet costs? A certified veterinarian advises on crucial steps for diagnosis and your pet's well-being.
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
Petco Pet Education Center
Health & Wellbeing
My pet has a lump on their neck. What is it and what should I do?
Is your pet's lump a mystery? A licensed vet tech explains common causes like tumors or infections. Discover why a vet visit is crucial for diagnosis and treatment.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My mouse has a growing lump. What can I do if I can't afford a vet?
Concerned about your mouse's growing lump and vet costs? A trusted Petco veterinarian provides guidance on managing her comfort during this difficult time.
Updated on December 04, 2025
Petco Pet Education Center
Health & Wellbeing
My pet has a soft lump. How long can I wait before seeing a vet?
Discovered a soft, nickel-sized lump on your pet's chest? A certified veterinarian offers expert advice on tracking changes and when to seek professional evaluation.
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