No, if she has wounds they may peck at them. How bad are the wounds? Do you have any pictures? Do you chickens free range in the yard? That would be a good place during the day (providing shade to her crate,) and they will stay familar with her.
Green poop may be from not eating enough. She might eat better if her crate is moved to the coop with the others. Mix up a small bowl of chicken feed, a bit of scrambled egg, and a tsp of plain yogurt, and a lot of water to make a mash. The more wtar in it the better. Offer that to her every 3...