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Scabby Skin That No Longer Responds to Antibiotics

by A reader

Reader Question
My 12-year-old English Springer Spaniel has had scabby skin for years from an autoimmune disease. We've tried all antibiotics. Each one works once, the scabs come back a month later, and then that antibiotic won't work anymore. Now there are none left to try. Sometimes she chews herself until there is no hair and the skin is raw. I don't know what to do.


Answer from Our Team

When antibiotics stop working one after another, it often means the infection has become resistant, or that the scabs are mainly from the autoimmune disease rather than infection. Autoimmune skin diseases are controlled with medicines that calm the immune system, not with antibiotics, so the key is to control the underlying disease.

Ask your vet for a skin culture and sensitivity test, which shows exactly which antibiotics still work, if any. Many resistant infections respond well to topical treatment alone, with medicated shampoos, sprays and wipes, used several times a week. These don't build resistance the same way.

A veterinary dermatologist can confirm the autoimmune diagnosis with a biopsy and set up a long-term plan, including safer immune-modulating medicines and help for the itch, so she stops chewing. Springer Spaniels are also prone to seborrhea and allergies, which can add to the problem. If cost is a worry, ask your vet about a payment plan, or look for a low-cost clinic, humane society clinic or veterinary school near you.

See staph skin infections in dogs.

This is general information, not a diagnosis. Please follow your own vet's advice.

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