The only drug that prevents cold sores.
Prescription Strength Cold Sore Prevention
Squarex’s drug SQX770 acts by a unique mechanism to prevent cold sores with a single topical dose applied to the arm in people who have frequent cold sores. We have found in clinical trials that just one dose applied to the arm improves immune response on a cellular level to the herpes simplex virus that causes cold sores, and prevents outbreaks for 3 months.
Check out this great video