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My dog's skin infection isn't healing, new spots appear. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 9 months and 27 days old | 55 lbs

My dog is 10 months old and has this skin infection that has been going on for at least a month .when I took him to the vet he gave me a prescription for antibiotics and cortisol but all it did was reduce the itching .Every day there is a new spot on his skin in a different place .I think that its a yeast infection but I cannot be sure because the vet did not run any tests on him.

1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on July 28th, 2019

Those spots on Aris could be several things including allergies to fleas, allergies to something in the environment, food allergy or endocrine disease. Each one of these problems is detected and addressed differently and I recommend to discuss with your veterinarian which one to start hunting down first. Parasites are often ruled out with an oral medication like Simparica. Food allergy is best ruled out with a diet trial using a hydrolyzed protein. Endocrine diseases are detected with blood work. Environmental allergies are a little more difficult to detect but a response to therapy or a blood test can give an indication. Once you figure out and address the underlying cause, the lesions should not come back. There are a couple things you can do at home and they can help but they may not address the underlying cause. You can try adding in an omega 3 fatty acid supplement for dogs, this can help improve the skin health. You may also try changing his diet to something like Royal Canin or Nutro as they are aimed at skin health. Also protect the area from trauma by having Aris wear an elizabethan collar at all times. Best of luck and please feel free to post any additional questions.

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