Using Frontline but still have fleas
I've been using Frontline with my dog for the past 2 years and he has never had a problem with fleas since i used it, but just this past weekend i noticed he had fleas and everytime i checked, thier would be 2 or 3 crawling on him, why is the frontline not getting rid of them? Is fleas like threatning?? I'm just a little worried, i gave him a bath the other day and put more frontline on him, it was about 3 weeks ago when i gave him his last drop so it was almost due, i'm guess there are fleas crawling around my carpet, what can i do to eliminate it??