DS has had this tiny circular mark on his face for over 4 weeks now. Doesn't seem to be growing, itchy, or spreading. It's bothering me as it hasn't gone away, and I'm searching my brain (and google) for possible causes, including insect bites, ringworm, or eczema, but nothing really seems to fit. It's under the skin (smooth) and looks a bit like a circle of broken capillaries. Any ideas anyone?