t feel that it was an STD. Three weeks later, the red
patch is still present. Every two to three days the top layer of
skin dries, becomes papery, and flakes off. It doesn't itch much, if at all. It is oval in shape, maybe a centimeter in diameter, well defined, shiny red, never ulcerated or bled, and minimally raised. What could it be? I'm starting to worry. Thanks for any help.