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Hi! I just got a new cat, and he came with some fleas. I applied the Advantage II gel on Monday, it was supposed to kill fleas in 12 hours. today he still had them. I took him to a groomer with a flea dip and vacuumed the whole house. came back and found two living ones on him. I know that the most you're supposed to apply Advantage is a week apart, but if I didn't get enough on his skin, is it safe to apply 48 hours apart? thanks
2 Answers

Answered By Vanessa Yeager DVM MPH
Veterinarian
Published on September 5th, 2017
Answered By Penelope Graben, DVM
Veterinarian
Published on November 15th, 2018
Hello!
Advantage is supposed to be used every 30 days, so it is likely that they are overdue for their next dose and that is why the fleas have returned.
You can go ahead and apply their next dose, then be diligent for the next couple of weeks about cleaning bedding in the house to remove any flea eggs from remaining in the environment.
I hope this is helpful! Thanks for using Petco Pet Education Center, formerly Petcoach!
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