1. Recurrent herpes labialis: developing drugs for treatment and prevention Publication: Silver Spring, MD : Center for Drug Evaluation and Research, November 2017 Subject(s): Antiviral Agents -- therapeutic useClinical Trials as TopicDrug Evaluation, PreclinicalDrugs, Investigational -- therapeutic useHerpes Labialis -- drug therapyHerpes Labialis -- prevention & controlResearch Design -- standardsHumansUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.