Seriously, I had no idea there was a tool called a comedone extractor that treats pimples until I saw it on youtube. It removes zits by squeezing out pus/dead skin cells. I had no idea the pus would come out in the shape of a worm! usually when I pop my zits, liquid comes out, no shape.
It usually comes out as a snake before the clogged pore has had a chance to become inflamed. Go stand in front of a mirror and squeeze a random place on your nose, if you want to see it happen live.