Returned From A Fishing Trip Is Mississippi Where I Fell

Returned from a fishing trip is Mississippi where I fell off a dock and got cut my shin pretty badly. I got 10 stitches and 4 days later was put on Cipro. It's been 3-4 weeks, stitches were removed and it has scabbed over but it still red, hot and hard around the wound. Today puss oozed out from all sides and a horizontal ridge has formed around the leg. My concern is the bacteria in the Mississippi waters (flesh eating). Do these symptoms indicate concern to you? I plan on going back to my North Carolina Md in the am.