I don't see anything that looks like infection in the picture, but often pictures are not as good as being there. Some of that traumatized tissue is going to scab or dry up, new healthy tissue will be exposed when the scabs come off. I would use an ointment that stays moist, like a triple antibiotic ointment, (even vaseline can be used)rather than blu-kote. Blu-kote is better for very superficial injuries and it disguises what the tissue really looks like, so that can be problematic. Keeping the area moist rather than letting it dry out will help with healing. I would not bandage it. If you see any discharge, pus build up (pus will be firm rather than liquid and will be creamy in color) or have any bad odor, any redness beyond what you might expect from the trauma, that could indicate infection. Also I'd keep an eye on droppings, those can sometimes be an indicator. Using a chlorhexidine solution or some veterycin you can flush the area daily as needed. I would keep her on puppy pads or clean towels, to help keep it clean, rather than any loose bedding material.
There are some pictures here of some wounds healing, may help to know kind of what to expect, the last one pictured is the closest to what you have.
https://www.backyardchickens.com/threads/wounds-pictures-of-how-they-heal.1325817/
If you are worried about infection then I would oder some amoxicillin to have on hand, you can get it as a fish antibiotic online as fish mox or aqua mox without a prescription. It has a long shelf life and can be good to have on hand in case needed.
One source here:
https://www.allivet.com/product/aqu...OOxoUF9VTgfWhHtQAB70cx8MB6US7z_xoCETkQAvD_BwE