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Why does my Shih Tzu have a rash between his legs? How to help?

Updated on September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | neutered | 2 years and 10 months old | 15 lbs

My shih tzu has a rash under his body between his legs. He eats harringtons dry food, gets groomed every 6 weeks. Nothing has changed since he was a puppy. I don't know what it is, just thought I'd try you before I book him into the vets.

1 Answer

Most Helpful Answer

Lauren Jones VMD

Answered By Lauren Jones VMD

Veterinarian

Published on May 24th, 2017

Harley's skin lesions certainly look uncomfortable! The most likely cause of this redness and papule formation is due to an underlying allergy. Dogs can be allergic to fleas, food or things in the environment, and new allergies can develop at any age, even though nothing has changed. A trip to the vet is still in order to assure that his skin has not become infected secondary to any licking or scratching because these skin infections typically require antibiotics. Be sure that Harley is receiving a high quality flea preventative regularly (such as Nexgard, Bravecto or Advantix). You can also try bathing him in a gentle oatmeal-based dog shampoo, as this can be soothing on the skin. If he is overly itchy, he may need an e-collar (cone) to prevent him from chewing or licking excessively, as this can cause further skin irritation. I hope that all goes well!
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