Help bad respiratory issues

[KChavez]

I have a five month old hen that I noticed me a couple times in the last week but thought nothing of it and last night I came home to her struggling to breathe wheezing and lots of sneezing. I want to get her and the whole flock started on antibiotics, what is everybody’s recommendation? I know I need to sanitize the whole coop. She is already quarantined to my bathroom. What is everybody preferred choice? Also at the rate and level she is is it more humane to put her down or is this something that she can come back from? I just see her suffering so much and it makes me so sad, and I don’t wanna make her suffer more if I can save her of course that would be my first and biggest priority

 

[nuthatched]

Can you get duramycin/tylan from your feed store?
She can totally bounce back from this with tlc, if it's just a respiratory infection.

 

[KChavez]

Can you get duramycin/tylan from your feed store?
She can totally bounce back from this with tlc, if it's just a respiratory infection.

None of my local feed stores have anything but vet, RX and amoxicillin

 

[nuthatched]

https://jedds.com you can get different antibiotics here, also possible on aquarium sites