My Hen won't leave her coop, discharge from her nostrils, please help!

[Cristin]

My 10 month old Lavender Orpington won't leave her coop, shes just lying there with her head down. There's a watery discharge coming from her nostrils and she shakes every so often. I lifted her out and tried feeding her, she sat on my lap and ate and drank a little bit. I put her outside the door of her coop and she climbed in again, she's very lethargic. Any advice or tips on what is wrong with her or what can I do to help her would be great, Thanks

 

[Suzierd]

Sounds like respiratory dease
http://edis.ifas.ufl.edu/ps044
If you decide to treat I would use Tylan 50 injectable. You can give it orally 1/4cc bantam or 1/2cc standard size once a day for five days.