Instant Alert: A dermatologist explains what causes cold sores and how to prevent them

MANAGE SUBSCRIPTIONS   |   UNSUBSCRIBE   |   VIEW ONLINE   A dermatologist explains what causes cold sores and how to prevent them by Eames Yates on Jan 7, 2017, 2:15 PM Dr. Melanie Grossman, a dermatologist based in New York City, explains what causes cold sores and how to prevent them. Follow BI Video: On Twitter    Share the latest business news with your network:    Email sent to:   |   Manage your email preferences   |   Unsubscribe Terms of Service   |   Privacy Policy Business Insider. 150 Fifth Avenue, New York, NY 10011