Pullet lethargic swaying on her feet. Help!

[OnyxStar]

Hi all, last week we got three pullets from a fair all about 18-22 weeks old. Three days ago i noticed one of them has started walking a little unsteadily and sleeping with her beak open.she has been wormed(I think) and the other two have been vaccinated completely and wormed.so I’m thinking they carried something and gave it to her because she’s vaccinated?
She ate and drank fine till yesterday but she seems more tired and unsteady today and hasn’t eaten or drank yet. She just seems all round weak and wobbly and deteriorated rapidly in just three days.
Her poo looks watery but otherwise normal to me, Ive attached a photo of her.she sways constantly while standing and falls occasionally.I think it’s coccidiosis maybe?help and suggestions much appreciated
Thank you in advance!

 

[Eggcessive]

I would make sure that she is drinking water, and I would hold a small cup or scoop up to her beak often. Make some wet watery chicken feed with a few bits of egg. Get some Corid today at your feed store, and add 2 tsp (10 ml) of the liquid Corid to a gallon of water and treat all of them for 5-7 days. It is safe. If you get the powder the dosage is 1 1/2 tsp. Also, look her over for lice or mites on her skin under the vent, belly and elsewhere. I would consider worming her again with Valbazen 1/2 ml orally. Or you can use SafeGuard 1.25 ml (1 1/4 ml or 1/4 tsp.) Shake either one very well before drawing up the dose. Let us know how she gets along. If you have poop pictures you can post one.

 

[OnyxStar]

Thanks. She is drinking a lot more than the other hens no problem with water. I just added some apple cider vinegar to their water and I’ll try get corid/amprolium soon.
Here’s a photo of the poo
Would garlic work to keep her going in the meantime?orally or in the water?

 

[OnyxStar]

Thanks for your help but unfortunately she died today
It was so fast definitely within 6days so I’m pretty sure it’s coccidiosis
Still going to treat the others asap
She is going to be much missed