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Why are my indoor cat's sores not clearing after mange treatment?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 4 years and 6 months old | 15 lbs

Hi my cat is 4 yrs old and is an indoor cat. He started scratching and creating sores. I took him to the vet and they said it could be mange. Vet gave a cortisone inj and gave him revolution treatment.. some of the sores have cleared but now he has 2 sores on the back of this head. If it's mange wouldn't the treatment work?

2 Answers

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on December 6th, 2016

Revolution treats mange but it should be repeated 2 weeks after the initial dose to be effective. The fact that he is an indoor cat makes mange less likely but it can happen. He could also have a skin infection and/or allergies and need additional medications. Call your vet and give him/her an update and have him rechecked. He might just need an antibiotic and an antihistamine.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on

    Revolution does do a good job of killing mites, but it does have to be applied every 2-3 weeks for several treatments in order to kill all of the mites. It does take more than one treatment for mange to be completely cured. I would continue with the protocol your vet prescribed, and if you have any additional questions on it, I would speak to your vet about your concerns.

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