Give this article a read:
https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/
It takes some time to clear an impacted or slow crop.
Go to your local WalMart and get 2 or 3 small jars of veggie based baby food, a bottle of generic docusate sodium stool softener (STIMULANT FREE), miconazole 7, a large plastic syringe (I assume you don't have tubing supplies) and a jar of coconut oil. You will then have what you need to treat your bird. If you don't have sour crop you won't need the miconazole 7 but it's good to have on hand for when you do.
You will need to give her copious amounts of water followed by crop massage between treatments. You need to be very careful not to aspirate her. I hold the chicken between my legs with her sitting on the floor. They will pull their head in as far as they can and will eventually stop fighting. I can then pry the upper beak open and gently hold it while very slowly dribbling water into the side of the beak and letting them swallow on their own. It takes a bit of time but I can get 50 mls of water in this way then massage the crop well. These massages are done every 60-90 minutes. Your bird will need to be kept crated with only water to drink during the duration of the treatment until her crop is completely flat.
After it is flat, offer a very wet mash made from her normal feed the following day and see how she does. You can add some raw egg and/or the rest of the jar of baby food you may have left after treating her with the stool softener if you go that route. If she eats and poops normally for one day, remove the food at night. If the crop is flat again in the morning you can let her return to the flock.
Depending on your temperatures and your setup, she can be crated in the coop.
I would keep her from free ranging for at least a week after the crop clears.
