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My dog's hair is falling out with crusty skin. Is it an infection?

Updated On September 23rd, 2025

Pet's info: Dog | Cocker Spaniel | Male | neutered

Hello I have a question my dog has like a thick crust of mucus on his hair and today we checked and his hair is falling out on that area is that an infection ?

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1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on July 25th, 2017

Poor Buster! Yes, from the photos it certainly does look like he has a skin infection of some kind. This can occur on its own, or due to an underlying skin problem such as allergies or mange. I would recommend taking him to the vet to have this checked as soon as you are able to, since he will likely need prescription antibiotics to treat the infection. In the meantime, you can try bathing him thoroughly in a chlorhexidine-based dog shampoo if you like - this should help to remove the crusty discharge and make him a bit more comfortable until you are able to see the vet.

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