My question: What might cause a small scalp wound that won't heal? As a general rule, I normally don't have a problem with wound healing. My surgery scars from a month ago healed with no problem. I have a small spot on my head that itched a few weeks ago. I was in bed, thought nothing of it and scratched the top of my head. My hand came away feeling wet and by the time my eyes adjusted in the dark to see the blood, a large drop had run down the back of my head onto my pillow. I held tissues to the wound until it stopped bleeding, but it took a long time and soaked through several tissues. My best guess is this may have started as a bug bite or a pimple? I've treated it with neosporin for several days with no luck. There's no puss, doesn't appear to be infected, but every 3 or 4 days I seem to manage to break it back open either itching it without thinking about it, brushing my hair, etc. It's almost on the top of my head in my hair line, so a bandage isn't really an option.. Two days ago I bled through two sheets of paper towel. There was very little white left on either sheet by the time it stopped bleeding. It bleeds enough that if I don't quickly apply pressure, I'll have big drips of blood running down my face or head.

What cause it to bleed like crazy and how do I get it to heal?