I been having for a few weeks a red spot with a white head in the middle of it. pop up in different areas of my body for several weeks one shows up and stays for days then I pop the white center and use alcohol on it and a little while later days or so another one pops up in different place each time ,on a finger, on my abdomen, on my back and they are painful. I thought coxsackie but it doesn t look like a blister it looks like a zit.