FRONTLINE SPRAY for Dogs provides your dog with protection against fleas and ticks in the following ways:

Controls Brown Dog ticks when applied monthly.
Controls Paralysis ticks when applied every 3 weeks.
Controls adult fleas when applied every 4 to 12 weeks.
Controls Flea Allergy Dermatitis when applied monthly to the affected pet. All other dogs and cats in the household should be routinely treated too.