As I mentioned in another post, I have a very old hen with mites. I dusted her with diatomaceous earth a couple days ago. I was ready to go buy Sevin today, but decided to super-dust my 3 old hens in wood ashes. From googling, it sounds like wood ashes work well. Questions: I dumped the ashes I used on them into the coop bedding.....which is about 3" deep. Was that okay to do? I imagine the mites run from the ashes during dusting, rather than fall off. (I guess I should have asked this question before dusting!) Next, it's drizzling out and might rain later. I'm thinking it's best to keep them inside the coop for today.....otherwise the wood ashes would get rinsed off. (they love to stand in the rain). Is there a time-limit when they could go out again? I have totally forgotten about how important dust-bathing is, and this spring/summer has been fairly wet and they really didn't have any place in their run to dustbathe. Can I just always make sure there's alot of wood ashes mixed into their in-coop bedding (which is fine wood shavings)? Might this be a respiratory problem if it's inside the coop? (10x10). I have to say there was a great video somewhere online (can't remember if it was from here or not) that showed a person with garden gloves on and a mask and they had a big container with lots of wood ashes and they just rubbed the heck out of the chickens in it. I'm really glad I saw this. Up to now, I would just sprinkle DE or wood ash on them, but this other method is great! You can really rub it in, and get absolutely everywhere on their body, by turning them in every direction in the ashes. Thanks for your help!