I would examine the beak for any possible cracks. Chickens will peck each other, and they also can injure or damage their beaks on feeders, fencing, and other things in their environment. In case it is cracked, here is a good article to read: http://www.hobbyfarms.com/help-my-chicken-has-a-broken-beak/
Nobody else has an injury. It doesn't seem like she will drink. Nobody seems to be pecking at or bothering her. Just don't know if I need to do something to help her. I will read that article. Thanks. She was resting in the coop this afternoon/evening by herself while the others mostly chose to stay out in the run. She is up on the roost now.
Make up a small bowl of chicken feed and a lot of water to make it runny. Add egg, and if you have some plain yogurt, add a tsp of that. Bowls with taller sides and wet feed can make it easier for a chicken with a beak injury to eat and the water in the feed can get water into them.