Possible side effects include skin irritation or allergy.
Antibiotic ointments are applied, with clean hands, directly to the cold sore. They should not be used inside the mouth or too near the eyes. Use only as directed.
Antibiotic ointments contain one or a combination of antibiotics that are sometimes effective in fighting secondary bacterial skin infections.
Common brand names include:
Cold sores are caused by a virus, not a bacteria, but these ointments may be used to help treat a secondary bacterial infection.
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