I'm thinking of getting some DE to help fight the mite. In reading up, I've also read about using Eprinex Pour-On which sounds like a good option, too, either or in addition to. I already bit the bullet and bought and been using Elector PSP. I've cleaned out my coop of all wood shavings. I have a concrete floor so I powerwashed and even used a little bleach, then sprayed floor, roosts, walls, crooks and crannies with PSP, brought in sand, and have sprayed chicken vents and legs and all roosts and cracks and crannies multiple times (I do this at night to catch everyone and while the bugars are out feasting). It seems some better but not licked yet and I'm about to run out of this liquid gold. I'm loathe to spend another $145 dollars for this concentrate. ***So here are my questions: several of you say "do your homework" in regards to using DE safely. There is SOOO much information out there and much of it is conflicting. I'm reading these posts where some say it's dangerous but do your homework and some say it's safe but do your homework. Could I get some more pointers on the best source of homework? Or if someone has already done the homework, can you share the cliff notes on what else I need to know other than it can cause respiratory problems? Because some people say they've used for years and never had problems. What am I going to learn through the homework that will help keep my chickens safe while using DE? I don't mind doing the homework, but just need it narrowed down a little. If I do my own homework, how do I know that what I'm reading is accurate since there are so many opposing views? Or please just share what the nuggets of wisdom are from the "homework." ***Additionally, is there an egg withdrawal using DE? ***Is the Eprinex I'm reading about the one for cattle, but people are using it for chickens too? ***Is there an egg withdrawal using Eprinex? I read no, but then I read that the no withdrawal was referring to cattle, so I'm left wondering if no withdrawal for chickens. Thank you for your help!!!