Wry Neck Chick — 5 weeks old

[Feeling Violette]

I’ve got a silkie chick who I’ve been treating for wry neck for 3-ish weeks now, and he’s only been getting worse. He used to just have a slightly tilted head, but now he’s often laying on his side, flailing around, his leg sometime just twitches, and he can only stand normally for a few seconds. When is it time to cull? I’ve been treating him with vitamin E twice a day, but his quality of life is so sad I am considering culling.
If culling is the best way about this, I’d like to know a nice way of doing so. Thank you for any advice!

^ The chick a few weeks back when his wry neck wasn’t bad

 

[nuthatched]

Have you been also giving B vitamins? E itself isn't going to be as effective.
I'm not sure how bad is bad before you should cull.