I'm afraid she'll hurt herself trying to right herself like she does.Once you get her on the vitamin E 400iu, she should improve in just one or two days. Meanwhile, allow her to rest in any position she wishes so as to cut down on her stress, which can contribute to her condition.
The most important thing you can do for her is to keep up her feedings of water and food. You can try giving her sugar water which can feed the brain and may help to ease the wry neck symptoms while the E does its work. (one teaspoon sugar to one cup water)