you could try an oatmeal shampoo... or it could be her food too i had a problem with snickers itching and dry skin - check the ingredients and see what ur feeding has corn in it
once i switched foods i had no more trouble w/the dry skin or itching...
good luck and hope this helps
**also i use cc systems day-to-day kit its great and $10 and alternate it with aussie (human) moisturizing shampoo and deeep conditioner**