Medical dermatology · Infections
Cold Sores (Herpes Simplex)
Cold sores are recurring blisters on the lips caused by herpes simplex virus. Dermatologists prescribe antivirals to shorten outbreaks and suppressive therapy for frequent recurrences.
Overview
Triggers include sun, stress, fatigue and laser or filler procedures around the mouth; preventive antivirals are often given before lip treatments.
At a glance
Treatment
Oral acyclovir, valacyclovir or famciclovir.
Prevention
Lip sunscreen; antivirals before facial procedures.
Spread
Avoid contact during outbreaks.
Frequently asked questions
Can I get filler if I get cold sores?
Yes, often with preventive antivirals.
Are cold sores curable?
The virus stays dormant, but outbreaks can be controlled.
When to see a doctor?
Frequent or severe outbreaks.
Related
Choose a specialist
Medical skin conditions need a dermatology specialist
Many Korean “skin clinics” focus on cosmetic procedures and may not treat skin disease. Board-certified dermatologists (피부과 전문의) are trained to diagnose and treat it, and medical dermatology is partly covered by Korea’s National Health Insurance. This page is general information, not medical advice.