I should think if the egg is fresh, its ok, "we" drank egg nog for years without problems...but, you couldn't get me to down any raw egg! Bluck!!!! There are so many other organic forms of protein- soy for example. The dairy in the drinks could be bothering this child, I wouldn't do liquid diet on any child unless its recommended by a doctor. This is setting the child up for future food/eating issues. If it were me, hang up the raw egg - ewwwwwwwwwww!