those ones that start out as that knot on your forehead. hell, i just squeeze the **** out of them at night or whenever i know i'm not going out again. get a little juice to start flowin out (not puss, just clear juice). hurts like a bitch and looks bad. then throw an ice cube on it for a few min to keep the swelling down. then go to bed. i just try and get them before they get a head on them.