Dynamiclear Rapid is a single application topical treatment for cold sores & blisters caused by herpes viruses (Also known as Herpes Labialis). It works by eliminating the virus on direct contact. It requires just one application per outbreak. Clinically proven to heal symptoms fast within 24-48 hours (in typical cases) (Read More). It provides quick pain relief and dries up blisters & weeping sore. Works at any stage & no need for multiple application.