UB, I mix sublimed sulfur (available from drug stores on the net) with a jar of hair gel from a beauty supply company. I use it after I shampoo and it helps a lot with the itchy, crawly scalp sensations.
I also mix 10% (by weight) sublimed sulfur in my shampoo (mix the sulfur in a small amount of shampoo, then add the rest of the shampoo and funnel it back into the bottle). Not sure how much it helps, but I feel better about using it. :)