When I tried frontline, I saw fleas litterally crawling over the application site. It’s pretty much useless these day. I’m having great results using Little City Dogs brand lufeneron (sp?). You can buy it on Amazon, or through LittleCityDogs.com $25 treats a cats and medium dogs for a year, and $50 for large dogs. It’s the same ingredient in Sentinel and Program, and is extremely safe, even at high doses. My cat even takes it as a treat out of his food (it’s a chicken or beef flavored cap). After using every available on the market here in FL, it’s the only thing I can get to work, with the exception of Trifexis, which really bothers me with the all the problems it has, and I took my dogs off.
