You and I are thinking the same thing. I've read a lot about "the itch". I've been having it for months now, with out end. I have noticed caffeine makes it worse. There are threads on this topic that are very interesting. The itch always seems to be in the thinning areas, something others have mentioned also.
Dermatologist prescribed clobetasol propionate foam. The swelling is gone, using a combination of cold water, baby shampoo, anti-inflamatories (advil), and anti-histamine (Benadryl) at night, and t/sal shampoo at least twice a week.
Still I get spots, and that is what the clobetasol is for