A related discussion,
Pain in Scalp hair. was started.
i think i have stress-induced itching, what can i do about it. i also have a bunch of itchy bumps on the back of my head, what can i do about that also
I also had a skin problem similar to yours. For years I saw dermatoligists and first they said it was ecxema and gave me all kinds of skin medications. Well finally a doctor diagnosed me with psoriasis of the scalp. Basically it flares up when I am upset or even really happy. I know of people who have shaved thier heads and gotten some sun on it and that clears it up. I tried the tanning bed thing and it does work to some extreme. The problem is I have very long and thick curly hair and I really don't want to cut it. I have just basically tried to cool my moods and live with it.
Itchy scalp can be suppressed but not cured. Various shampoos can help, as well as scalp applications. I can't think of any connection with arm itch, unless what you have is not really dandruff but rather stess-induced itching, which often affects the scalp.
Best.
Dr. Rockoff