Tube feeding her might be an easier way of getting enough food and water into her. There are numerous articles and videos on tube or crop feeding chickens. The tube is passed 2-3 times a day and then removed between feedings. You also can make sterile normal saline to clean her wounds before applying the antibiotic ointment. Boil 2 tsp of table salt into 1 quart 32 ounces of water, cool, and place in a clean jar. You can spray it on as well. What is your location? Here is some info on tube feeding:
https://www.backyardchickens.com/th...d-pics-for-visuals-very-detailed-post.805615/
https://www.backyardchickens.com/th...ng-guide-pictures-under-construction.1064392/
https://www.backyardchickens.com/th...d-pics-for-visuals-very-detailed-post.805615/
https://www.backyardchickens.com/th...ng-guide-pictures-under-construction.1064392/