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My French Bulldog has a rash and dandruff after permethrin. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | French Bulldog | Female | unspayed | 6 months and 20 days old | 23 lbs

My 6 month old french bulldog was scratching her ears excessively and body, so I thought she might has ear mites. I treated her with 3 doses of permethrin solution and it started to get better. She started to get a maculopapular rash on her body and dandruff. I restarted the permethrin as I thought this might be a disseminated infection. I'm not sure if this is mange or folliculitis. Can I do anything else on my end?

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on December 7th, 2016

Aioli may be suffering from mane, a fungal infection or a bacterial infection. You will need to take your dog to a veterinarian who will likely need to do a skin scrape , swab of the lesions and possibly a culture of a brush sample. Each of these infections are treated with a different kind of medication. Permethrin will not touch them. As a matter of fact she may have had an allergic reaction to the Permethrin or another agent. Please take her to a vet soon.

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