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Why is my dog itching with a rash, pimple-like bumps, and oily skin?

Updated On September 23rd, 2025

Pet's info: Dog | Brussels Griffon | Male | neutered | 10 years and 3 months old | 10 lbs

My dog has been itching himself like crazy since August and at first, I thought he just had an allergy to ragweed. However, it’s now December and he’s still itching. I just noticed that he has now developed a small rash on his groin area with pimple like bumps. He’s a 10 year old Brussels griffon. Also, when we scratch him I notice that his skin gets oily. Do you know what this might be?

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1 Answer

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Answered By Amber W

Veterinarian, Certified Veterinary Acupuncturist

Published on December 1st, 2017

Aw poor Rocky! It's likely he may have a food allergy or atopy as these can cause itching year round. It also looks like he may now have a bacterial skin infection secondary to the itching and allergy. It would be best to have Rocky examined by a veterinarian. He can be checked for other causes of itching and medication can be prescribed. There are many new medications for allergies available including Apoquel and Cytopoint. He may need antibiotics or a medicated shampoo if infection is present. I'd also recommend Rocky be on a quality flea and tick preventative like Advantix, Revolution, or Bravecto. You can also try using an oatmeal based shampoo to soothe Rocky's skin until he can get in to see the veterinarian. Thanks for using Petco Pet Education Center, formerly Petcoach! I hope Rocky is feeling better soon!

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