Yuk! both my dogs have fleas! i thought the nibbling one was doing round her bum was anal glands and i couldnt see dirt on her neck and then she rolled over--loads of fleas around her tail and bum! i feel guilty that i didnt notice sooner, anyway, out came the frontline even though i did do it a month ago and low and behold 3 days later some little sh**ts are still alive! is this normal? i washed bedding hoovered house etc. asked at vets whether i should shampoo but she said it could interfear with frontline. any ideas please?