Couple questions

Can you give inside caged chickens Dietanacous earth as a bath?? Also I have a young chicken that I have treated for coccidiosis she was one of a group of four the others are and were fine. Can she be put back in with them after her treatment is finished?

If it's Cocci, being in with them now IMHO (others can correct me) won't effect anything. I do NOT separate for Cocci. If they are that far gone with Cocci and can't be around young birds their size, then I would have probably put them down.

I use my birds to dust my coop walls with DE. I put a big box of it in the middle of the coop, leave the vent windows open and close the door. They send dust up into the air for an hour or so and I let them out for the night, leaving the door open so it can air out and settle.

De is good chickens will like to dustbathe in it. I sprinkle a little in their food.
I think they would all have been exposed already to cocci. Should be able to put the one back now.

Was a little worried useing straight DE. Good to know I figured I could put her back with her buddies just wanted to make sure! Thanks