Have you ever smashed your finger in something and immediately get a black finger nail? Well along with that sweet Hot Topic look comes a throbbing pain that, even for those with high pain thresholds, can be unbearable. It's hard to even sleep with this kind of pain! So, the best thing to do is drain the blood pocket under the nail and relieve the pressure build-up.
Some use the heated pin method. But that can lead to a little more pain than necessary. Also, there is hardly any pain associated with the drill bit method except for the slight pressure you are applying. Fingernails don't have nerve endings, and by moving very slowly with a drill bit, you can reach the blood pocket without touching your nail bed!
finally, you get a satisfying eruption of crimson that, if performed soon after the injury, has a geyser effect. it's quite nice.
Step 1: Smash Finger
I happened to accidentally crush my finger with a welding tank.