In order to administer Frontline Plus for dogs, you first need to make sure that you have the proper product based on the weight of the dog.
The dog should be completely dry at the time of administration for it to be successful. In addition, you do not want to let your dog get wet until after the Frontline has completely dried which usually takes about 24 hours after application.
To open the vial of Frontline, the snap the tip of it away from you to break the seal. You want to apply the entire contents onto the dogs skin in a location directly between the shoulder blades.
Make sure that you don’t put the Frontline mostly on the dog’s hair, but rather you want to get it on a patch of skin. Then simply discard the empty container.