Silicic acid is the active ingredient in Hübner Original Silicea® Cold Sore Gel. Silicic acid is the mineral silicon (Si) combined with oxygen and water. What makes silicic acid gel so special, is its exceptional ability to bind water and secretions. The gel binds the fluid secreted by the cold sore blisters (herpes) naturally, drying them out and limiting the spread of the virus.
Tingling, burning and itching are alleviated.