That’s crazy dude. My daughter got hers in a door last month but not nearly as bad as that.
Now, my wife on the other hand ;)
She likes to bite her nails. Two weeks before her due date one gets infected. Being preggo, it was best to get some antibiotics and let the pros drain it. The nurse said she had never seen so much puss come out of a finger before. Needless to say that nail was a goner.
Getting an infection definitely requires a bit more than just a smashed finger...
DAMN!!! That's nasty!!!