I havent had to use any flea meds(pesticides) on Bailey so far this year. I got some Diatomacous earth and have been using that on his fur and bed, and it really seems to be helping. I still brush him regularly, and kill any fleas I find. But other than a couple here and there he hasnt had a problem.
My dads dog, Jack, on the other hand, is currently infested. My dad has been battling the fleas for a while now (about a month). He bombed the house with that bug stuff (he closed up the house and had to stay out of it for the whole day) but that didnt work, there were still fleas. For some reason, there is practically an army of fleas in his basement. Jack never goes into the basement, and I am 110% positive there are no animals (mice/rats/etc) down there. He sealed up the basement and put another bug bomb down there.... and it didnt even put a dent in the problem.
A month ago my dad decided for some reason to buy BioSpot. He got it for Jack, and his cat. Star(the cat) had a severe reaction to it, I had to give her a bath in dishsoap about 2 hours after it was applied. I asked him what he had put on her (I didnt know he got Biospot) and nearly had a heart attack when he said Biospot. I finally got him to understand how horrible it is and he agreed not to use it again.
Then he got Frontline, about 2 weeks ago. Jack is still infested. Obviously, Frontline isnt working... Poor Jack is itching like crazy. I just shaved his back legs and his belly (thats where the fleas were biting him) and pulled off at least 30 of them. I put a ton of the DE in his fur, and all over and around his bed inside. Im going to give him a bath in a couple days and see if that helped at all.... but I have a feeling he is still going to need a chemical flea prevention...
The only "safe" flea chemcial I know of has been Frontline. Our cats all just got Advantage, I only put it on a couple days ago but so far they are fine and I havent seen them itching. Should we try Advantage(obviously the dog kind, not the cat's stuff) for Jack? Is there a better one? He needs something that works.. soon.