Herpes | Laser Resurfacing | Can laser cause herpes outbreaks?
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Herpes and Lasers
There are many types of lazers used to reduce fine wrinkles and smooth the face.
After laser resurfacing, the skin is red, swollen, and itchy. It is always advised to prescibe an anti-viral prescription whether or not the patient knows of a positive history for oral herpes or genital herpes. This recommendation is based on the results of a study published in the September 1999 issue of the journal, Plastic and Reconstructive Surgery. This study compared the outcomes of patients who took the anti-viral medication with those who did not. The study found a significant reduction in outbreaks for the control group taking the anti-virals for seven days, starting one to two days before the laser treatment. Still there are no guarantees and a herpes outbreak could cause pain, pigment, infection, or scarring.
If a patient has an active cold sore before the procedure, they should reschedule until it is totally healed. Discuss everything with your doctor at the consultation.
The short answer
Laser resurfacing can give great results, but the cold sore virus is one of its best-known risks. If you've ever had a cold sore, your care team will want to know so they can take simple steps to protect your skin while it heals.
Key facts
- Laser resurfacing removes or heats layers of skin to improve wrinkles, scars and uneven tone.
- Mayo Clinic says the most common infection after laser resurfacing is a flare-up of the herpes virus that causes cold sores.
- You may be advised against laser resurfacing if you are prone to cold sores or have had a recent outbreak.
- Your care team may prescribe antiviral medicine before and after the treatment.
When to talk to a doctor
Tell your provider about any history of cold sores or herpes before booking. See a doctor promptly if you notice blisters, crusting or worsening pain on treated skin during recovery.
Related reading
Sources
- Mayo Clinic – Laser resurfacing
- Mayo Clinic – Chemical peel
- World Health Organization – Herpes simplex virus fact sheet
This is general information, not medical advice. Please see our medical disclaimer. Section added October 2026.
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