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What to do for my fragile 3-week-old kitten with fleas to thrive?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed | 26 days old | 10 lbs

I have a 3 week old kitten and all her siblings have died over the last week, I got kmr today and bathe her every other day and pick the fleas off, do you have any advice to help her thrive?

2 Answers

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 20th, 2018

Mavrick is so cute! Newborn kittens can be very fragile, and unfortunately sometimes some of them don't make it. The best advice I can give you is keep her warm and fed. and weigh her daily to make sure she is gaining weight. It's safe to use Frontline Spray on her to kill the fleas, so I would use that instead of bathing her every day. Be sure to disinfect the environment from the fleas, as they can be a continuing source of fleas. Wash her 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. Just keep her out of any room you use a flea spray on until it's dried completely. If there are any health problems or concerns with her, be sure to take her into a vet immediately. Best of luck, I hope this helps!
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Related Answers from Veterinarians

  • Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on January 31st, 2020

    If it's safe to use on kittens, you can use it on Amelia. I can say, however, flea collars typically are not good and are ineffective. I can give you a really good flea treatment program for her. First, I would give her 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 her 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.

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    1Pet Parents found this answer helpful

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