My 6 year old daughter gets dry skin and we use Elave, Neways and Burts Bees products and they do help. The Elave junior intensive moisturiser is very good for kids, we use that one a lot.
We try to steer clear of products that have strong colours or smells in them – like certain baby shampoos and bath products that look lovely and smell lovely but can contain lots of nasty chemicals which harms the skin.
The Elave baby range is very good too, nice for showering & bath time, that may help her skins condition.
hope that helps