More threads to read about beak injuries:
https://www.backyardchickens.com/threads/sos-part-of-chickens-top-beak-fell-off-leaving-exposed-fleshy-underside.1526010/
https://www.backyardchickens.com/threads/broken-open-beak.1337516/
A wound spray such as Vetericyn can also be used on the beak. A bit of vaseline or vegetable oil may help to kee the tongue from drying out. Here are some articles to read, and I will look for some threads:
https://poultrydvm.com/condition/beak-injuries...
I would spray some saline if you need to clean the beak. Try to keep her tongue moist with water, so it doesn’t dry out. It is hard to see the beak well in the photos. If you could take some clear photos from the sides and front tomorrow, it would help. It looks like a lot of the top has been...