I'm sorry Pearl is in decline again.Friends, here we are again. Pearl has started to have crop issues again. I have treated this 3 times and it clears for a week or so. Then starts up again. I fear there is something major wrong. However, I did worm her once with the goat wormer and forgot to repeat. That might be a last ditch effort to try again before culling her??
You can try deworming to see if it helps. Sometimes a crop problem can be chronic and due to underlying conditions.
Have you tried giving an Epsom Salts flush to see if that makes a difference?
To give an Epsom Salts Flush read post #2, post#10 of this thread.
https://www.backyardchickens.com/threads/miconazole-dosing-question.1617350/