Article medically reviewed by Dr. Gavin Chan (MBBS, cosmetic physician, liposuctionist)

Templestowe Lower and Berwick Clinics
Dr. Gavin Chan has a background in intensive care, anaesthesia, and emergency medicine. Since 2004, Dr. Chan has provided cosmetic procedures, including anti-wrinkle injections, dermal fillers, liposuction, fat transfer, skin needling, and laser treatments. He is a doctor trainer for various dermal fillers and anti-wrinkle injections.
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Question:
Why do I get cold sores after treatment? What can be done about it?
Answer:
Cold sores can be reactivated by a procedure performed in the area where they may commonly occur. This includes around the mouth, for fillers/anti-wrinkle injections/peels/laser and around the groin area for laser hair removal to that area.
Active cold sores will require rescheduling of appointments unless otherwise advised by a doctor.
A two dose course of anti viral medication is usually adequate in most cases to prevent cold sore recurrance in most people. This is taken the day of the procedure. We tend to give this to those who are prone to getting cold sores rather than all patients who have treatment. If you are prone to cold sores, please discuss this with your doctor prior to treatment.