[header] How to apply frontline [title] Buy the correct type of frontline. [step] You can purchase frontline at a pet store or your vet's office. You also may be able to get frontline at some drug stores, like walgreens. 
It's a good idea to buy frontline from a vet, however, as a veterinarian can a make sure you get the right product. [substeps] Frontline makes flea and tick treatments for dogs as well as cats.