02/15/2026
👇🏼the reason why your injector asks if you have a history of cold sores, no matter how infrequent you may get them and how an outbreak can be prevented. A simple prescription beforehand can prevent unwanted cold sores, especially after a beautifying lip treatment!!
Why Might Lip Fillers Trigger Cold Sores?
1. Trauma-Related Reactivation of HSV-1
Cold sores are triggered by the herpes virus, which lies dormant in the nerves around your lips. When you get lip fillers, the tiny needle punctures and the swelling that follows can act as a stressor, waking the virus from its dormant state.
According to a study, “Herpes virus outbreak after dermal filler injection is a rare but troublesome complication, caused by virus reactivation. Herpes simplex virus 1 (HSV-1) is often responsible for such outbreaks, triggered by the trauma of needle punctures during filler injections.”
