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My dog has more fleas after Frontline. Why isn't it working?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | 18 lbs

I bought frontline for my dogs put it on them 4 days ago. They have more fleas on them than they did when I put it on them. This photo is after giving only one of them a bath

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1 Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on June 16th, 2018

Frontline unfortunately is not a good flea treatment, as it is not working anymore in many cases. Here is a list of good quality flea (and ticks) treatment. Spot ons: Revolution, Advantage, Advantage Multi, Bravecto spot on (ticks as well). A good house spray would be Indoorex. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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