I have the itching symptom, and often scratch at night when I am sleeping. I wake up with marks all over my skin too.

If I catch myself doing it, hydrocortisone 1% cream seems to relieve the itching somewhat, and helps to heal the wounds. I don't know how it is that it works (since it's "nerve" related), but it does help.

I also avoid hot showers when I am having a itching spell, because that causes it to be even more itchy. Cold compacts to the area help as well.

Cherie