Nail Trauma Paronychia

My patient welcomed in the New Year by doing a midnight 21 mile run through the streets of San Francisco.  It was a clear, crisp night and what a healthy and invigorating way to celebrate New Year's Eve!  The next day, however, her 2nd toe looked like this.  It was throbbing and tender to the touch.  She did not remember any specific trauma.

By the looks of the photo, it is a paronychia, an