Herpatch Cold Sore Serum is the innovative and effective way to treat your cold sore symptoms quickly and easily. Thanks to the easy-to-use tube, the serum can be applied directly to the affected area. Upon application the white serum will be activated and form a transparent patch over the wound. You will notice the effect instantly. Beside protecting the skin from drying out, this physical shield also helps to make the cold sore largely invisble. It will be less perceptible, while reducing the discomfort you may experience when having an outbreak. Herpatch Cold Sore Serum's improved formula contains active oxygen, which is a proven critical element for speeding up the healing process.< Room Temperature Belgium