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My cat has flea scabs. Are herbal sprays or devices safe/effective?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | spayed | 9 lbs

Hi there’s a flea problem at my apartment. I have two cats from the same litter both a year and a half. One cat has no knicks or scratches and is bigger than her sister but the other cat has lots of gross scabs. I’m not sure why. But I also wanted to know if this pest repellent device would be safe for two young adult cats. I want to get the herbal sprays too but was curious about this. I’m worried about the cat with all the scabs, she looks kind of like a stray now!

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1 Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on September 14th, 2019

When cats have a big problem with fleas, they can develop a flea allergy to the saliva from the flea bite. This can cause the scabs. Herbal sprays do not work to kill fleas, nor does this pet repellent device. Your cats need a chemical flea treatment program. First, I would give them Capstar. It's a one time pill that starts killing fleas within 30 minutes. Then follow up with a spot on treatment, such as Advantage or Revolution. This is a treatment that has to be used once a month. You will also have to disinfect the environment. Wash their bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a spray to kill fleas in the house, such as Indorex, or a flea bomb would work well to kill the fleas in the home. Have your cat with the scabs seen by a vet to get them treated.

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