I have cured every wry neck chick I have ever had here with straight Vit E squirted in it's beak from the capsule. Twice a day for 3 days and it is better. Silkies and their derivatives are susceptible to that. I try to always add extra E and no corn to my Silkie and Sizzle diets.
I gave quite a bit of E, but I heard from Sheri, I believe, that selenium was the deficiency. Set me straight if I'm not correct, please, I never want to lose a bird to wry neck again. It was horrible