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Review title: doesn't work
Product review: didn't work for my dog. it got fleas under Frontline "protection" . My dog lives in house and goes into the street just for walk. So, we used Frontline spray back home in Europe and never had any problems. But after using this spot Frontline for couple of weeks I've noticed flees. Immediate extra application of Frontline didn't help at all - it didn't make any effect on insects. So, I finished up using Hertz for getting rid of them.
