You mean the cellulitis that's also referred to as erysipelas sometimes, right? It can recur. I was hospitalized once and had several recurrences. In fact, somewhere in there I developed an allergy to penicillin as a result of too many antibiotics, I think. The good news is that each successive case of it seemed less severe and it's now been many years since I had a case of it.
Bacteria can be persistent!