If your hen is eggbound you must try to get the egg out if you can. If you don't she will die. I had a hen that did. She was fine in the morning she hadn't layed the day before. She started showing problems at about lunch time. She was dead by 9 pm the same day. I tried all the techniques and still couldn't shift it. If she is still eating and drinking give her a crushed calcium tablet in her food. Don't give her alot of food just a treat or something she will completely eat with the tablet crushed in it. Keep her away from the other hens in a darkened area. Keep a watch on her and try the other methods. Hopefully she will lay. Eggcessive has give you some good advice.