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My German Shepherd puppy has a red, swollen, itchy armpit. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Female | 5 months and 7 days old | 45 lbs

My german shepherd has this large red and swollen area in her armpit. I just noticed it today. Could it be something serious or a skin allergy? She has been very itchy in her belly and chest area.

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1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on December 26th, 2019

This looks like a typical skin allergy. I would discuss with your vet about getting Pepper on a flea prevention (if not already) and an allergy medication. Flea allergies are quite common in pets this young, so this would be my first suspicion. If this isn't the cause, then a contact allergy is likely. Contact allergies are an allergic reaction to something the pet is laying on frequently. I hope that you are able to get Pepper some relief soon! Best wishes and take care. : )

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