It is my understanding that allodynia occurs at the dorsal roots.
(like shingles does).
A member here found this interesting video..explaining it.
http://www.medscape.org/viewarticle/754961
If you are not a member of medscape, you can join quickly and for free, and then be able to view the video. It was made for doctors, but I think it explains it well enough for everyone.
Notice that in the early part of this video... opiates are discussed and how they can block nerve pain.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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