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My new kitten has fleas. How do I protect my other cat and home?

Updated on September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | unneutered | 3 months and 21 days old | 2 lbs

I recently brought in a black kitten. Was not aware it was infested with fleas. I have vaccuumed every area it’s been on as well as bathed it in dawn and flea combed it for hours. I also have another cat who I had put Sentry topical ointment on. Can my older cat still be infested and is my home at risk of infestation?

1 Answer

Most Helpful Answer

Answered By Destini R. Holloway, DVM

Veterinarian

Published on June 29th, 2018

To be sure that you have done everything that can be done to prevent infestation of your other pet, I would recommend using a flea fogger from Lowe's or Home Depot to kill all the fleas that can hide in the cracks of your sofa and carpet. You will need ot evacuate all the pets from the home during the treatmnet, as instructed ont he canister. I wuld also recommend the next treatment of flea prevenation to be a higher quality flea preventative than Sentry. Sentry is a low quality flea preventative unfortunately. I only recommend the following for quality flea preventatives:
1) Revolution
2) Cheristin
3) Advantage
4) Comfortis

I hope that you get rid of these fleas for good and protetct your other cat from getting them. YOu can also give your older cat a Capstar right before doing the flea fogger to really guarantee that she/he is flea free. Capstart can be used concurrently with any flea preventative b/c it is a flea ridder and not a preventative.

Please let know if this answer was helpful to you and your cats! Thank you for your feedback and have a wonderful rest of your weekend. Take care!

1Pet Parents found this answer helpful

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