Well, quite the mess you have yourself in there Watson.:laugh:
If that is bone sticking out the end, it needs to be shortened. If not, it will be a pain in the thumb for ears to come.
Doesn't look like you got the nailbed or Matrix. Nail should grow back normally.
Shorten it up a bit, clean it real good and bring the meat part up over the end so there is a good cushion.
Antibiotics for at least 10-14 days, a fresh tetanus shot, if you haven't had one and some Norco, Percocet, or Vicodin for pain
Should be good to go in 6 weeks or so for complete healing.
Six months or so to toughen it up.
Did it happen at work? If so, they owe ya about 20 grand for partial loss of limb. Can't get those boogers way back in your nose like that.:laugh:
Let me know if ya have questions. Have fixed hundreds of these throughout the years.:thumbsup: