Tips to get rid of spots overnight?Watch
That means the spot is a reaction to something outside of my body, getting in there and irritating my skin and I need to draw it out it I want to get rid of it. Toothpaste works by drying spots out (apparently so does Sudocrem from the sounds of things? I have a reaction to sudocrem funny enough so I can't ever use it), honey, tea tree oil and witch hazel are also natural agents of drawing crap out of your skin, to the surface.
If you want to avoid scars you have to be very careful what you do once your spot has formed into a white head - and especially careful what you do if you have sudocrem or toothpaste on your face as they're not natural, they're chemicals (i.e. if toothpaste and sudocrem are your choice, don't touch either whilst they're working, and DON'T use them if your skin shows any signs of being broken - think about the pain experienced if you've used veet straight after shaving - or ask a girl that uses veet about that..)
Now, if you regularly suffer with spots, have acne - as in clusters of spots not localised to one area of your body/face (e.g. I touch my chin a lot, that's where I get spots, if ever), that is a sign of an internal problem. Perhaps your hormones are out of balance, perhaps you need to change your diet, this is something you won't find a cure for on an internet forum - go to the doctor! It's the cheapest option in the long run, because if it is hormones, none of these home remedies that you apply externally will get rid of those spots forever.
If it's diet, these are only options for putting a plaster over a bullet hole, the spots are going to recur if you don't change your diet and balance out the amount of oil being secreted by the skin. But they will be a nice cheap option for you to use once you have made the diet change and just want to hurry the process of getting rid of those last few angry spots..