Chris just told us about Zyrtec for the itching, in this thread:
http://neurotalk.psychcentral.com/thread48820-2.html
I have used cold packs (they work!) and hydrocortizone 1% cream (which sometimes works).
It is called "Neuralgia, Neuropathic and Neurogenic pain", and for me is worse when I am hot:
http://www.mult-sclerosis.org/mssymptoms.html
Cherie
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I am not a Neurologist, Physician, Nurse, or Hairdresser ... but I have learned that it is not such a great idea to give oneself a haircut after three margaritas
.