I know the feeling! To put your mind at ease,,you nor your other pets can be affected be these mites and lice. They feed exclusively on poultry and eat dead skin ,feathers and their blood(mites) . They can be treated with a dusting powder you can get at your farm supply store, you must powder right down to the skin and all over them,except the head.
Remove nesting material and replace with clean stuff,,sprinkle the powder under the nesting material to kill any that come off the hens. Re powder them 12 days after the first treatment to kill any hatched lice and mites. Some people completely remove the whole coop materials and disinfect every crevice,,I as well as many others know that lice ect are recurring and therefore treating them every 8 weeks with the powder will reduce infestations..and cause less damage to your birds. Check them before the 8 week treatment to make sure you don't treat them unnecessarily,,,as they may not have them again. If your hens Free range or wander in the yard they are almost guaranteed to pick up lice and/or mites from other wild animals. Just keep them from becoming an infestation with the directions I gave you,,,best of luck,,:)
Remove nesting material and replace with clean stuff,,sprinkle the powder under the nesting material to kill any that come off the hens. Re powder them 12 days after the first treatment to kill any hatched lice and mites. Some people completely remove the whole coop materials and disinfect every crevice,,I as well as many others know that lice ect are recurring and therefore treating them every 8 weeks with the powder will reduce infestations..and cause less damage to your birds. Check them before the 8 week treatment to make sure you don't treat them unnecessarily,,,as they may not have them again. If your hens Free range or wander in the yard they are almost guaranteed to pick up lice and/or mites from other wild animals. Just keep them from becoming an infestation with the directions I gave you,,,best of luck,,:)