Differential Diagnosis

I knew it wasn't bursitis.....
The inflammation, heat, redness, and pain spread, the fever persisted....I saw my PT yesterday who also thought my issue was more of a systemic problem than orthopedic. Today I went in to my regular Dr's office. My new diagnosis is cellulitis. I got a shot in the @ss of Rocephin, and a mega dose of super duper antibiotics. I get to wear a pretty compressive brace, and need to ice frequently.
My half marathon is in 6.5 weeks......
Maybe I will take a picture of my knee tomorrow....