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Why is my golden retriever puppy scratching with scabs after new food?

Updated On September 23rd, 2025

Pet's info: Dog | Golden Retriever | Female | unspayed | 9 months and 29 days old | 60 lbs

My 10 month old golden retriever has been scratching and had a few scabs at the base of her tail and back of her neck. I took her to the vet today and after shaving large patches of hair he discovered red, irritated pustules, scabs, and bumps nearly covering her entire lower back. He suspects it could be allergies, but I'm hoping to get a second opinion. She's been eating the same grain free puppy food for 8 months and we recently switched her to an adult food. Could this be the reason?

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1 Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on September 30th, 2017

Allergies have multiple causes, food sensitivities being one of them. Other causes include flea bites and environmental allergies (contact, inhaled, etc). In sensitive dogs, one flea bite can set off a reaction resulting in itching, chewing and licking. You can compare ingredient labels of the puppy and adult food to identify possible allergens. A food elimination trial would be necessary to confirm or rule out any sensitivities. Treat Annie now as indicated by your veterinarian. Discuss allergy testing, hydrolyzed diets and food elimination trials after she recovers.

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