Frontline not working on my dog!
I bought Frontline Top Spot (cheaper than the others) from Entirelypets.com and it didn't work AT ALL. I went to my local vet's store and bought Frontline Plus. I noticed that it took a whole 24 hours or so to kill the fleas, instead of immediately as they usually do. Then came back a week later! I have never had this happen before in all my years and dogs. What is going on? My poor little 14 pound JRT is getting sore spots and I don't want to chemical her to death either. I certainly am applying it correctly; I've been doing it for years, along the back of her neck against the skin. She's older of course (not sure of her age, maybe 11, lots of white around her brown face), but that shouldn't have anything to do with this. We moved to a more rural area, but she doesn't even like to spend a lot of time outdoors, and even if she did, Frontline should work.