The fewer things unpronouncable? The better. I'll bet your scalp is 'flaking' giant snowflakes, and that the rest of your skin? Well... not nice.
Take a look at this stuff, and others .... At times, I felt like a sqirrell ...always scratching: http://www.eucerinus.com/products/hb_calming.html
http://www.eucerinus.com/products/hb_calmingwash.html
Both help you keep your skin moist when it's not doing that job on it's own.
The ONLY thing that I've found to really help the scalp tho? IS to go to a hair styllist and get a 'hot/heat treatment' Where they slather moisturizers on your head and then put you under a professional hair dryer just for the HEAT. Gotta tell you? IT IS HEAVEN! PLUS
From then on out? You are going to have to take care of that scalp skin as if it were in the desert. Super conditioners and at times [which I have done?] sloshing skin moisturizers on my head to get that durn itch to calm down!
I've other skin treatments? But putting them on leaves a greasy mess and is hard to get off or out. Next? Pay better attention to your nutrition! if your doc has done [and should have done?] a Metabolic blood panel? Get a copy and read about it! Learn about what blood tests of various sorts Mean or could mean, but...don't always mean. IF you are low on some key vitamins, it'll tell you then check out this forum here:
http://neurotalk.psychcentral.com/forum49.html
Use the 'search' feature on the top blue bar and read away ....get confused then read more! There is a LOT to take in there. But you can get the gist of what you need and why.
After that? Treat your skin as IF you have diabetes! Even if you don't [as I do not]. That way you keep your skin safe and healthy and it can be one of your best protections in the long run. Don't 'over or under' slather, mind you, only as much as it seems to need and be asorbed. Too much is a waste and also a place where new unwanted things could develop.
OH THOSE ITCHES! How I hated and HATE THEM!
Hope this helps! - j