Fleas have evolved and are becoming immune to most of the different "potions" we use. While Comfortis worked reasonably well, it made a couple of my dogs extremely nauseous and was very hard getting them back eating. One of the newer products is Vectra and I am pleased with how it is working so far. Been using it for about 6 months. Not cheap either but made a deal with my vet if I buy 3 - 6 packs at a time she strikes a deal with me. There have been reports of skin eruptions with the product with dogs with sensitivities so be forewarned. DE just no longer an option down here...between the drought last year and wet spring the pesties are in full bloom and we need a stronger defense. Molly In a message dated 6/16/2012 10:46:32 P.M. Central Daylight Time, stjamesgsd@xxxxxxxxxxx writes: I have tried this product and I still have fleas on my dogs. I have sprayed the yard and bombed the house. I have also tried that Pet Armour and it did not work either. I guess I will try going back to Advantage. It quit working for me, too! One of my friends has spent a small fortune on Comfortis for her dogs. We met someone recently who knows someone who was able to get the main ingredient by itself. It costs a lot for the initial purchase but it breaks down to just a very small amount for each dog. Linda HendrixSt James ============================================================================ POST is Copyrighted 2011. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. Each Author is responsible for the content of his/her post. This group and its administrators are not responsible for the comments or opinions expressed in any post. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org SUBSCRIPTION:http://showgsd.org/mail.html NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================