It wasnt till i moved to Bundaberg from the Gold Coast that the Frontline eventually stopped working and even had to put down lime but like i said we are a flea hotspot for some reason. I havent seen it so bad anywhere else and it was the first time i ever had fleas in the house Maybe they did become resistant to it ? I'm not sure.
Whatever it was i just had to give up on it and try somthing else so thats why i went with my vets idea to give the comfortis a try.
I guess we traded a tick area for a flea area but i'd make that trade any day.