I bought some packets at southern states ,my local farm supply store, it is called SAV A CHICK. it is a powder mix with water with mixture of different kinds of vitamins.
Save A Chick doesn't have the vitamins to treat wry neck, if that's what this is. I would recommend 3 or 4 drops of polyvisol without iron twice a day administered to the chick from the dropper. You can find it at Walmart or cvs.
I am going on 3 weeks treating my duckling and she is doing great. It is challenging to give them the vitamins, but we'll worth the effort