How you prevent the scalp from being itchy?
The one thing you can do to ease itchy scalp is to buy head and shoulders. I know its for dandruff I know but it controls itchy scalp. There are all types of head and shoulders out there. :)
I use Suave Scalp Solutions anti-dandruff conditioner, that way you don't have to use shampoo!
Tea tree oil works for me. Just transfer oil to an applicator bottle that can effectively reach your scalp (i.e. doo gro oil bottles) and apply directly to your scalp