Complex Recto Vaginal Fistula following Incision and Drainage for Perineal Abscess

I suffer form Perineal Abscess, there was pus drainage from anus during defecation. A surgeon did Incision and Drainage of the abscess lump on the left vulva next to vagina, which then progressed to a complex fistula.(A 2 cm long fistula. Vaginal opeaning, on left vulva at 5'o clock, and anal opening, near anal verge at 1'o clock) I expirienced passing of flatus, feco-purulant discarges from the vulval opening. This was diagnosed and operated by fistulectomy with Martius flap tecnique. Within 2 days of the surgery I statred passing flatus through it, and by a weeks time, fecal matter also was visible. I am 24 year old, unmarried, yet to have childern. I want to know which technique will cure me from this condition? what precautions shall I take so this doesn't reoccure in future?