Three month old Buff Orpington with sour crop.

[Gabriel06]

Hello, my girlfriend's chicken, a three month old Buff Orpington, has what we believe to be sour crop. This is the second day of her showing symptoms (lethargy, not eating and barely drinking, swollen crop). We have been trying to feed it Greek yogurt, but she just refuses to eat it no matter what we do. Also, the swelling of her crop has barely gone down, if at all, since the first day of symptoms.

On the first day of her symptoms we emptied her crop. Today we tried again but nothing came out.
What could we do to make sure she starts eating and recovering?

 

[azygous]

You need to treat the yeast that's behind the sour crop. An easy to get med is miconazole as long as you're in the US. (Europe sells miconazole that has a toxic ingredient not suitable for chickens to ingest.)

Here is a run-down on crop disorders and how to treat, https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/