I give my dog Frontline Top Spot every month, and he ended up with fleas!?!?!?

I gave him an application about 23 days ago. I noticed fleas on him and I about 2 days ago, and they're getting worse by the day. Has anyone else had this experience? That stuff is expensive, and supposedly "the best", so I don't know why he suddenly has fleas? It worked fine all summer.

Asked By: Justin - 10/22/2009
Best Answer - Chosen by Asker
My first question would be are you applying it properly? Meaning that you apply ALL of it to the skin and none on the hair. If the dog has big greasy spot on his back, you did not apply it correctly... More
Answered By: Jessie - 10/22/2009
Additional Answers (5)
The same thing happened to my dog. My Vet said sometimes after you use the same product for a long time, the effectiveness diminishes. After 30 days (not before) change to another brand line Revolution or Advantix.
Answered By: marci knows best - 10/22/2009
So my dog has flea allergies and I was treating once a month like you and she still got fleas along with hot spots. I have now switched her to a oral pill called Comfort is. You give it once a month and it kills the fleas when they bite the pet. Good thing is you can still give baths and it helps with the fleas in your... More
Answered By: tj - 10/22/2009
If you use any product too often, it won't be so effective. I never use Frontline PLUS every month because it is unnecessary. I live in a hot humid country so there's always ticks & fleas everywhere but my dogs never get those things all the time because I bathe them once a week so they're not stinking & attracting... More
Answered By: Goldenly Addicted - 10/22/2009
frontline never EVER worked on my dog. i even asked the vet if i was applying it right, which i was, it just never worked. the other topical brands did absolutley nothing either.(my dog's a chihuahua daschund mix so it's not a thick fur issue... More
Answered By: kindell - 10/22/2009
I've had the same experience with Advantix. Sucks doesn't it... More
Answered By: ScottieDog - 10/22/2009
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