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My dog has red swollen itchy patches in his armpits. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | Dachshund miniature | Male | unneutered | 3 months and 23 days old

My dog has red swollen patches in both armpits he is fine in himself he dous scratch them on occasion curious to what is causing it

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3 Answers

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on July 1st, 2018

Hi, thanks for using PetCoach! I would worry that he has an allergy to something, either in the environment, his food or via contact. You can try benadryl to see if it helps but if it doesn't I would have him seen by your Vet for an exam. There are lymph nodes in the arm pit area. Personally I don't like how swollen and circumscribed it is and would ideally want to feel the areas. https://www.petcoach.co/pet-medication/benadryl/ Good luck!

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6Pet Parents found this answer helpful

Other Answers

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    Answered By Dr. Elizabeth

    Veterinarian

    Published on June 17th, 2019

    Yes, the scanning and redness are not normal. They can indicate itching or skin infection. Puppies are also prone to skin mites and the veterinarian may check for these. Have Atlas examined by the veterinarian. Best of luck.

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    1Pet Parents found this answer helpful

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    Answered By Makenzie Kurth, DVM

    Veterinarian

    Published on June 20th, 2018

    Thanks for using PetCoach. The picture didn’t come through perfectly on my end but it looks like you are talking about some redness in the armpit area. This is most often related to allergies. This is a common “itchy spot” during an allergy flare up. Try a skin strengthening dog shampoo (my favorite is Duoxo Calm). Consider trying Benedryl as well- see link below. https://www.petcoach.co/pet-medication/benadryl/ If no improvement in two weeks or if worsening in any way, it’s time to see your vet.

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