At the moment it looks like NanoBio’s cream will reduce the average healing time of a cold sore by over a day. This makes it as good as, or slightly better than, anything else currently available for episodic treatment, including pills like Valtrex.

“NB-001 is an investigational nanoemulsion consisting of high-energy, nanometer-size droplets containing cetylpyridinium chloride, polysorbate, and oil…., the nanoemulsion droplets surround the virus and fuse with the viral envelope, causing membrane disruption and viral destruction.”

Interestingly, if you used it early enough, the study found it might reduce healing time by nearly 2 days. This was a Phase II trial, so more improvements may follow.

Source: http://www.medpagetoday.com/MeetingCoverage/AAD/13244