Hi
Have you seen any dermatologist
just apply moisturisers which will prevent dryness and flaking of skin.
regularly water intake should be adequate to hydrate the skin
Eat plenty of fruits which have more antiopxidants will stop fare ups
Next Steps
See Dermatologist or you can contact oasis health care
Health Tips
avoid excessive oiling on scalp ,Reduce stress level as its a pshyco somatic condition,stress will flare up