I swear by this two-step protocol. I have suffered from cold sores my whole life. This sequence reduces my cold sore duration to 3-4 days.
-Take Lysine immediately and continue to take it throughout the duration.
- Apply coconut oil + peppermint oil(or tea tree oil) regularly. I swear by this. The peppermint dries out the cold sore while the coconut oil prevents excessive scabbing (And as I understand, coconut oil has anti-bacterial properties).