Mite/lice ridden hen- sick and suffering- what to do?

[WildChild283]

Mites can kill after making them extremely anemic. Permethrin garden dust or the ready to use horse spray will treat them if used every 7 days at least twice. The other chickens, coop, nests, and roosts will need to be treated as well with new bedding added. She could have something else going on as well, and cancer, reproductive problems, or crop disorders are some common things to worry about. I would offer some electrolytes or sugar water in a small cup up to her beak, and offer wet chicken feed and egg as well. She could be very weak or dehydrated. Poop pictures may help. Check her crop in the morning to see if it has emptied overnight.

Thank you! Can I still eat the eggs while treating with Permethrin?