Thank you for a good question. Is quite clear that preoperative intravenous antibiotics are essential when placing a "foreign body" such as a breast implant but is less clear whether a course of antibiotics postoperatively provides additional help and risk reduction. My practice however I always prescribe one week of oral antibiotics postoperatively since the stakes are high if an infection develops. I would alter that if a patient had a history of allergies to oral antibiotics or other unfavorable reactions but in general I feel better safe than sorry.Good luck with your procedure. Discuss this with your plastic surgeon.Jon A Perlman M.D., FACSDiplomate, American Board of Plastic SurgeryMember, American Society for Aesthetic Plastic Surgery (ASAPS)Beverly Hills, California