Website address: https://vicks.com/en-us
Phone Number: 1-800-362-1683
Email/contact form: https://vicks.com/en-us/contact-us
Facebook page: https://www.facebook.com/vicks/
Twitter account: https://twitter.com/NyQuilDayQuil
Mailing address: The Proctor and Gamble Company, Attn: Vicks, 1 P&G Plaza Cincinnati, Ohio 45202