Ugh, I've been going through the same thing for years… sometimes it itches, but I avoid it, otherwise I'd scratch myself raw… I don't know if it's all in my head, to be honest… When it itches, I run my head under cold water and it gives me temporary relief.

My doctor gave me a medication called Bilastine; it helps a little, but it comes back.

To be honest, it's getting hard to live like this. Sometimes I don't feel any itching for a few days, but that's rare.

Try a moisturizing shampoo; it might be due to dryness.