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My allergic dog has bleeding skin bumps. What could be the cause?

Updated On September 23rd, 2025

Pet's info: Dog | American Bulldog | Male | neutered | 7 years and 7 months old

My dog has blister like bumps all over when caught they bleed no puss or anything he has allergies all white

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1 Answer

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Answered By Lauren Kennedy, DVM

Veterinarian

Published on November 7th, 2017

It sounds as if your dog has a skin infection, most commonly caused by an allergy or fleas. The allergy could be a due to a protein innyour dog’s food or an environmental allergy like to dust, pollens, grasses, etc. 

The allergy causes your dog to itch and chew at the skin which breaks down the skin barrier. This then leads to infection. Skin infections are typically characterized by large areas of redness, crusting, flaking, and pustules. 

 Your dog will most likely need antibiotics to help clear up the infection and possibly an allergy/anti-itch medication like Apoquel, Atopica, or Cytopoint to give some relief while the infection clears up. A medicated shampoo may be beneficial as well. I would also recommend he be on a good flea control routinely too. 

 I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck!

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