I get whiteheads once in a while, and I end up picking them myself. Is their any tool out there which would prick the whitehead, so I could squeez it out, instead of putting hot water on it and leaving a mark on my face or picking it with a neeedle?

Please do not use hot water on your face or pick it with a needle, this could damage your skin.

If you have whiteheads or blackheads, use a gentle exfoliating cleanser every day to remove dead skin cells so they don't block the pores. You can also use topical creams, such as beta hydroxy, alpha hydroxy or Retina to help remove them. There are pens or removal devices designed to remove whiteheads or blackheads. You will find these at a beauty supply store or pharmacy.