To date there is no such thing as a viracide, and the mechanism by which Valtrex works does not involve killing the virus. The hottest thing in the head and neck, oral, and cervical cancer world is the new highly effective vaccine to prevent HPV viral infections, particularly types 16 aned 18, which are responsible for more than 95% of all cervical cancers. We are on the verge of seeing cervical cancer go the same route as polio. The implications of this in the oral cancer world, while not being discussed heavily by GSM and it's two partners Merk and Medimmune, are a big deal, particularly for those that come to this cancer via this virus which has clearly exhibited the ability to produce malignancies. HPV and HSV are not the same animal........ But the coreleations between HSV 1 and cancer are weak, though it could likely be a facilitaor or cofactor. This is not the same as a cause.