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My puppy has sores after new flea shampoo. Is it an allergy?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 3 months and 9 days old | 7 lbs

Hey my puppy got a lot of sores in his head and under his chest what does that mean an how can I treat it i have been bathing him in a new flee and tick shampoo

1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on April 24th, 2017

This is probably caused by an allergic reaction. first of all make sure you de-flea Kaine regularly every month with a high quality spot on (ex. Advantage) as fleas are by far the most common reason for these reactions. If the fleas are not the problem, it could be an allergic reaction to food or an environmental factor. this is more complicated to treat and will sometimes require medications such as Steroids, anti histamines or cyclosporin in order to stop the allergy.

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