Not that it really matters at this point, but was her comb covering a larger area over the wound?
I had a hen once with a large comb that extended well beyond the back of her head. She was always getting it torn off except for where it attached at the front. Each time, I cleaned her up and stuck the detached comb back into place. In less than a day, it was reattached.
It's tempting to cut off any dangling tissue on a chicken wound, but the best thing to do is to stick the detached tissue back over the wound to act as a skin graft. This enables any wound to heal three times faster than if you trim it away, making it necessary for the chicken to grown new tissue to cover the wound.
I use antibiotic ointment like original Neosporin to "glue" the detached tissue in place. This should be done each day until the wound completely heals, never allowing the wound to dry out.