What do you all do to help your sheep with flies? Mostly ours are being bothered lately with face flies. I am considering one of those dusting bag things, we are trying to figure out some way to place it so that the sheep can't avoid contact with it. Has anybody used one, does it work? With our horses we can spray them, but no way would the sheep tolerate that. We have been having hot, wet weather and suddenly the flies are BAD.