I am having my first experience with mites in my coop. I have dusted the whole flock with a Permethrin powder. and I am in the process of sanitizing the coop. One of my hens is so heavily infected that she has become anemic and I have separated her from the flock. The live mites moved to her face and her eyes were almost swollen shut this morning, so the feed store recommended that I use the poultry protector spray on a cloth to help remove some of the mites from her face and eyes. Which I did. Now she is covered in what looks to be dead mites. I can't tell how many are dead and how many are still living. If she survives this ordeal I'll need to continue to treat her but with the volume of dead mites in her feathers how can I tell if I'm getting ahead of the problem? Honestly it is so bad I feel like I should cull her and take her out of her misery, I will be very surprised if she survives in the condition that she is in. With these factors in mind (poor condition of the bird, heavy infestation) is there a way to wash her so that I can determine if the mites are dead or alive? Please also give some recommendations for keeping her warm and dry, keeping in mind it is winter and she is not in the coop with the rest of my hens. Thanks in advance for your suggestions.