I used Frontline spray on my ferrets about a week and a half ago to kill off some tiny tics on them, it done the job, but last night when i was checking them i found more ticks....when i done them they had plenty of the spray put on so surely it should be giving more protection than a week and a half, i was out yesterday, so whether they picked them up from the buries i dont know, it does say it should protect for up to a month.
SINDASOX