I had braids and protrective styles through out the whole summer. And Im a person who needs to wash their hair after like the 4th day from wash day. Well needless to say, when I got braids, I felt like I was gonna die!!!!. I tried to put everything on my scalp to help it, I would wash it every week, until one day I just stopped w/o even realizing it. After a while, I was no longer putting products on it, not on purpose but unconsciously. My head no longer itched after a while, and it just felt normal. I did not have to bother with it much, I pretty much left it alone. Styled it whenever it was necessary (i.e. if I was going out). But after a while, my scalp did not bother me. It didnt bother me to the point where, after taking out my braids - the next day I was able to relax it (mind you after 4 months of no relaxer) and I did not burn once. That was the first time I got through a relaxer and had not burned in 2 years.
So my advice to you, is just leave it alone, the less products the better, and don't think about it. Eventually the itching will subside and you should have no problem.