Let your doctor know EVERYTHING - they are the experts and when we keep information from them we keep them from doing their best work. They know what is important and what isn't -- we don't! That's why we should share as much as we can think of....make a list of symptoms, when/what/what else was happening, questions, etc.
Take a look at the Lupus Resources thread (linked from my signature) -- it includes a list of what to have ready for the doctor - although it was written specifically for lupus and a rheumotologist, the same advice holds true for almost any Dr or situation. I'd just mention that the rash was the same - inactive - for 36 yrs and has recently started to spread/change. Since you don't know what the test was, exactly, it is probably not relevant this much later.
Best wishes, let us know how it goes.
Lynnwood, Lupus & Sjogren's ModeratorDIAGNOSING-LUPUS & LUPUS-RESOURCES
"Life is far too important to be taken seriously" - Oscar Wilde