I have a smooth pink/reddish spot on the skin of my uppermost thigh, essentially in my crotch. The spot is about 1cm wide, and it was only very mildly itchy for about the first day, but since then it does not itch. It has been there for several days, and is not growing or spreading, nor is it fading or shrinking. I have checked, and can only see one of these on my body. (I am a 27 year-old man, 6'2" 155 lbs, with a rather uneventful medical history, besides perhaps some childhood asthma)