It seems that you may be having scalp prurigo
In scalp prurigo there may be pruritic lesions on scalp and the itching is severe.
Mostly it is caused by stress
,tension and anxiety
Sunrays,dry weather,soap,water,pollutant may exacerbate the lesions.
Anti histaminics may be taken till itch is relieved.
may be taken in tappering dose.
If there is infection, antibiotics may be taken.
Savlone may be used to wash the scalp.
Mild steroid with antifungal lotion may be applied at night.
Anxiolytic drug like fluoxetin may be taken to reduce anxiety.
I hope you may be benefitted. However, you consult dermatologist
I think you got my answer.
Dr. Ilyas Patel MD