That's probably what I would do until it healed, but I'd use a nonstick pad, gauze and vetwrap. Pictures of how I did a peacock here:
maybe just something over that hole? it seems tender and I really don't want something getting stuck in there and it getting infected... this is my first experience with foot problems (beside a broken toenail.) lice and worms are more up my alley.
forgot to add: I don't know why her toe is bent like that, could it have possibly been from that... Thing???? I have only had her for a year, her former owner owned her for the first years of her life. It doesn't bother her at all and she can scratch like any normal chicken, so.... I guess It can't be that bad.
The pocket is always going to be there to a greater or lesser degree. Just keep an eye on it. It is nothing to stress about.
You pulled a huge hunk of crap out of your hen's foot before it got impacted or infected. You are clearly an observant poultry keeper. An empty pocket is nothing. It is merely one more thing you need to keep in mind as you are minding the birds. Leave it be. She will be happier if you do not fuss over it too much.