I have the same problem with two of my babies. My little Jacky runs around and hides after I put it on her and so does her sister Sadie. I did not use front line for a year because I thought it was just them, Well I put it on them again about a week ago and the same thing happened. The vet said that they can not use it any more that it stings there skin. It also has been know to cause other medical problems in dogs and cats. I will not use it again. I just use capstar one time. If I see a flea. Which I don't have any problems with. Capstar is the greatest,1 pill and within 30 min all fleas are dead.Tonights news had a clip about frontline how some animals are dying from it. Brenda
