Overview Zinc for the Treatment of Herpes Simplex Labialis (HSL) Status: Completed Trial end date: 2010-12-01 Target enrollment: Participant gender: Summary Evaluate the effectiveness of a topical preparation of zinc to treat cold sores. Phase: Phase 3 Details Lead Sponsor: Integrative Medicine InstituteCollaborators: Beth Israel Medical CenterMatrixx Initiatives, Inc.Southwest College of Naturopathic MedicineWomen's Health Services, Santa Fe, New MexicoTreatments: Zinc