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Dog has rash on neck/armpits. Should I try new shampoo or vet?

Updated On September 23rd, 2025

Pet's info: Dog | Boxer | Female | unspayed | 9 months and 24 days old | 45 lbs

My 9 Month old female boxer pup has a rash on her neck and under her arms wig her neck being the worst area. She doesn't scratch all the time and it doesn't seem to bother her that much. Her mood, appetite and playfulness level are all fine. Weve been bathing her in oatmeal dog soap with no signs of improvement. We called our vet and they said to give her Benadryl but that makes no improvements either. Is there another shampoo I can try or should I take her into the vet?

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1 Answer

Most Helpful Answer

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Answered By Amber W

Veterinarian, Certified Veterinary Acupuncturist

Published on September 13th, 2017

Hello and thanks for using Petco Pet Education Center, formerly Petcoach! A mild rash or redness in the armpits or under the neck like Belle has could be allergy related but it also could be related to a bacteria, fungal, or yeast skin infection. If she does not seem itchy in these areas it may be okay to monitor. Douxo makes some medicated shampoos that may be helpful, however you probably want to take Belle to your veterinarian first. Your veterinarian can take a sample of cells and evaluate them under the microscope to see if an infection is present. That way the most appropriate shampoo or oral medication can be dispensed.

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