I understand your concern...
This "diagnosis" is genetic:
http://dermnetnz.org/scaly/dsap.html
I wonder though if you have tinea versicolor? It will turn brownish with sun exposure.
http://dermnetnz.org/fungal/pityriasis-versicolor.html
Tinea versicolor is treated with sulfurated soaps and/or antifungal liquids applied topically. It can take a year to resolve in some people.
Welcome to NeuroTalk. I can't comment on the RSD connection, but please keep an open mind about other causes.
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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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