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Why is my dog's tail itchy, losing hair, and covered in pus?

Updated On September 23rd, 2025

Pet's info: Dog | Jack Russell Terrier | Male | neutered

Hello, my jack Russell has been itching the base of his tail for a couple days and I didn’t really notice, but it is definitely bugging him, it’s itchy, he lets me look and clean it but he isn’t comfortable hair loss is starting to happen and the area is covered in puss and I can’t fully clean it all, it is not in flamed. Thank you

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1 Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on July 15th, 2019

That looks infected. Pets can get infections like bacteria or yeast. Sometimes the infection is related to flea bites or allergies. You must protect the area from licking/chewing by having Denzel wear an elizabethan collar at all times. I recommend to have him examined by the veterinarian and he will likely get antibiotics, an anti-inflammatory (which will decrease the itching and make him feel better) and a medicated shampoo. If fleas are the cause, discuss which flea prevention is best for him. I hope this helps.

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