I've got the same problem right now--normally I don't ever see bugs--only saw lice once and became really good about dusting after that. But...in the last couple weeks, I noticed some of my girls have a messy fluff, missing feathers around their necks and heads and aren't laying as much either--then I noticed one of my pens' pine shaving is infested with bugs-(I thought you couldn't see mites during the day-but this must be what these were-they weren't lice). I put pymethrin dust in their dust bathing holes all around their run and clean their coop once a week and every couple weeks I spray with a bug spray for horses/livestock and then dust all the roosts, nests and the coop floor. Today, I thoroughly cleaned out the coop--sprayed it, dusted everything. I even changed their nests. Using plastic crates now--no wood and hubby is building metal roosts for me--no more wood. I've got a vinyl floor in the coop so the critters can't hide in the floor. One other thing I did was put a little cedar shavings in with the pine shavings as I was told that bugs hate cedar. I've got good ventilation and live in a dry climate so no worries about fumes from the cedar hurting my chickens. Then...instead of dusting all 26 chickens I decided to try ivomec/eprinex after I read about it. I went to my feed store today and got a bottle of it (kind of pricy--but there is enough to last my lifetime!!) and I tried it out tonight. From what I've read about it from others who have used it--it sounds like the ticket! It was amazingly easy to administer to my chickens too. Took me less than 10 minutes. I waited till they were all roosting--went in the coop with my head light/lamp on and used a dropper and put the dose on the back of each one of my chickens necks. I wore rubber gloves but didn't even get a drop on me and each of my chickens sat still as I carefully and quietly squeezed the dropper of liquid on the neck. The only one that stirred a little and made any noise was my big rooster...he just ruffled his feathers as I put the dropper through his neck feathers, but it only took me a second. I don't know about you but wrestling 26 chickens during the day or at night when they're on the roost to dust them is a nightmare...and I'm usually covered in that nasty dust and breath it even with a mask on to boot. This was the easiest thing EVER! I hope it works! I'll let you know. If you're interested--the dose is .5 cc per large chicken (per 11 lb bird) and .25 cc per bantam (5.5 lb bird). I have 9 yound chickens-about 9 weeks old and I just used a little less than .25 cc for them. If this stuff works--I'm going to be in heaven and so are my chickity-chick-chickens! Good luck with your battle with mites! Let's win this thing!