I've had it before, too. At least twice. And Grant as well. Little hard red places that go away or can even be popped. This was a really extreme case, though - I mean my entire last knuckle-up was ENORMOUS and purple, and the area around the nail was yellow, and it was THROBBING...and shiny...for 3 days...and then mainly I went in because of the red line traveling rapidly up my finger and over my hand to the bottom of my arm, which is the main thing that I think was "serious" about it.