The itch could still be due to her dry skin and eczema – this is a condition called xerotic eczema. It can appear anywhere on the body, and scratching will definitely make it worse.
You should bring her to see a dermatologist for a proper diagnosis and treatment. In the mean time, you can read this post on eczema for more information about how best to manage her condition.
Simple things to do first would be to:
- Stop scratching
- Apply moisturizers such as QV or Cetaphil as often as possible – at least 3 to 4 times a day
Cheers