I've always used frontline for my cats and had no problems or fleas. This is the first time I used Frontline on my Yorkie. He scratched constantly, even three weeks later,I even saw two fleas on his belly that were alive and kicking. I jusy put another dose on him two days ago, and he's still scratching. I thought maybe I got more in his hair than on his skin, but if he continues to scratch after this second dose I won't be using Frontline on my yorkie again. |