I noticed scales starting to lift on my chickens and I immediately treated for the leg mites. Major clean out of coop, spraying down with mite spray, vaseline on legs (i have 30 chickens, and though all tame and willing, it gets VERY messy!!), then i still noticed some more raising and I treated with ivomectrin drop on today following dosage instructions on the forum. Tonight they also got a cooking oil dip and more vaseline. My question is: How do I know when they are 100% gone? Do I have to wait until they shed the scales or just make sure no more are lifting? I really hope i got them! I've been hitting them hard! Any help would be greatly appreciated, thanks!!