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My puppy has an itchy, pimply rash on her belly and vulva. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 3 months and 11 days old | 60 lbs

My puppy has a rash around her vulva which has now spread onto her belly. Kind of looks pimply. She is also itchy everywhere but her belly (not sure if the two are related). What could this be? *She is on flea and tick meds and I've bathed her in hypoallergenic shampoo. She is on a grain free diet (chicken and pea Authority from Petsmart)

1 Answer

Most Helpful Answer

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Answered By Lauren Jones VMD

Veterinarian

Published on March 23rd, 2017

Poor Penny! Itchiness can be due to a variety of causes, most commonly due to allergies to fleas, food, or the environment. The concern is that in some cases, intense itching can lead to the development of a skin infection, which often resemble pimples. Penny should see her vet to have her skin examined and may be started on a course of antibiotics. Until then, I'm glad to hear that she is on a flea and tick preventative. Make sure it is a high quality preventative, such as Nexgard, Bravecto, and Advantix. You get what you pay for with respect to flea and tick preventatives! Some pets are highly allergic to fleas and even one bite (which can occur despite prevention) can set off intense itching. You may need to consider changing her food to one with a different protein source (i.e. lamb or salmon rather than chicken) in the future. If you decide to do so, be aware that it can take 2-3 months to see full effect from a diet change and make the change gradually over 5-7 days. Until you are able to take Penny to her vet, put an e-collar (cone) on her to prevent further itching and licking.

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