Because you found two ticks on your pup does not mean Frontline is not
working. Read the label and you will see that NOT ALL ticks will die when
they bite. There are several species that Frontline will not kill.
I have been threw the samething and called them. They told me that as well.
I still use it because I believe it to be the better of them all. After almost
five years and one incident I think I can't complain too much.
Frontline has now put out another product that does kills them all. |