My cat has fleas and I'm having trouble getting rid of them. She is on FrontLine. It was applied the first week the fleas were noticed, and again two weeks later after we gave her a flea shampoo. In addition to that we have used a flea killing carpet powder, comb her with a flea comb, and vacuum every 2-3 days and spray insecticide in the vacuum bin. We also got her a flea collar which has been absolutely useless. I thought I was in the clear when we had no fleas for about a week, but I guess some eggs hatched and they have popped up again. I have those fogger/bombs but I hesitate to use them because I dont want every surface in my home covored in it. Any tips?