It's been two months and two applications later of frontline and my house and my dog and two cats are still infested! I bombed the house gave them all fleas baths (before application) washed all the bedding , and still they are all infested. I don't understand! I called the help line and they said it could take up to three months to work!! What? That is absured! I am switching to advantage for now on!!!!

I used this product on my cat for years--since his kittenhood, and he's now eight.

I never had a problem until recently. It appears now when I use Frontline that he has an allergic reaction to it; a silver-dollar sized chemical burn appears within hours of application, and within a day he has a bald spot to accompany it.

He is now enduring twice-daily hydrocortisone treatments and a sweater vest made from an old sock. (Have you ever tried to put a 16 lb cat in a sock? I caution you; it is an exercise in patience and dexterity.)

Very happy with the service,would buy from this vendor again,
George