i suppose it's possible that the fleas have developed some sort of resistance to frontline but that's unlikely. i've used it for many years without a problem. i would definitely consult your vet, though, and see if perhaps a change to something else is warranted.

you should be aware (and maybe you already are) that you should not be using any sort of flea spray in addition to the frontline. anything you spray on your dog will be absorbed through the skin and you don't want that to happen on top of the frontline application.

hope you get some answers. ugh, fleas!!!

You dont have a problem with Frontline, and I suggest you dont double dose - it is not necessary. Once a flea bites your dog when treated with Frontline, that is it for that flea. Like a bee sting. Your problem is that you either have fleas laying eggs in your yard or in the house somewhere. I sugest you treat your yard with DE (dont use the stuff for pools, there are extra chemicals in it that can harm your landscaping plants. Keep the dogs off the yard for 24hours. And try and apply the DE before a rain. Check all the rooms in your new home. Fleas will lay eggs and hatch out within a week. They can lay eggs in carpeting or dirt. Treat the place not the dog. Many of the treatments, like sprays can cause serious skin or other health issues.

Thanks, Ninapearl. All 3 times we've brought Cody to the South he ended up with fleas but they we're gone by time we reached New York again. This time we're here to stay.
I wouldn't mix anything with the Frontline. I would want to hurt his skin or health. He's our "Bud".
Thanks for replying.

I haven't seen actual resistance to Frontline yet, but you have to remember that it takes up to 24 hours for a flea to die on a Frontline-treated pet. For flea-allergic dogs, it is plenty of time to start itching. South Carolina has no break from flea season like you had in NY (I'm in Durham NC, same thing here). So you have to use Frontline monthly year round.

I personally have used frontline for at least 10 years every single month on all of my dogs and had not had an infestation. I have seen a couple of fleas here and there in those years, invariably on my most flea-allergic dog of course. But we've never had a major problem.

As far as the current itching, I like a combo of steroids and antihistamines. You'd need a vet to Rx the steroids, but diphenhydramine is available OTC.

When Bindi came, he got us a flea infestation-Free kittens useally have something wrong, Bindi is flea free now, if on his terms Bindi is a great cat, put him with other pets -watch out!

Even if you're using Frontline on your pets religiously, be sure to treat your home and yard as well. Vacuuming is always a good bet, washing bedding, etc. It can be tough to get rid of a bad infestation. You can also use a spray in bad areas, but it has to be one that kills both adults and eggs/larva. Here's a site I found useful when I had fleas in my house.

Here is a link that might be useful: http://www.beyondfleas.com/