I've been using advantage for about 8 months...for both Sally and Caspar. It has made a huge difference in the skin condition of both of them. Sally-as a lurcher-has very fine fur,with hardly any on her tummy. A year ago it was red and sore...she was constantly nibbling and scratching. She's in great condition now...as is Caspar who also had a dreadful reaction to front line. So glad I switched....and happy to hear its worked for you also. :-))