About a month ago, I noticed a small red blemish about 5-6mm in diameter accompanied with dry skin
. Since this first one appeared, several more have appeared randomly across my trunk, arms, and scalp. They seem to appear overnight, sometimes in places where I may have touched after itching one of them. At first glance they look like pityriasis rosea, but I never had a "herald" patch which leads me to thinking perhaps it's something else.