I would give a little egg for selenium, since too much can be harmful. A poultry vitamin containing thiamine ((vitamin B1) and 400 IU of vitamin E are the usual treatments dor wry neck. Helping the chicken eat wet mushy chick feed with the egg can be helpful—just hold them and dip the beak so they can eat and drink.I am currently treating a little silkie mix with wry neck. I found that she can eat on her own if I provide her food in a tall bowl rather than expecting her to forage off the ground like the other chicks she is in with like to do. The food gets knocked over but that provides for the others. Im just so happy to have found a way for her to feed herself. I have been hand feeding her for a couple of days until this discovery.