HELPDESK ANSWERSDoes cannabidiol (CBD) oil decrease the frequency and severity of chronic headaches?Chapman, Blake DO; Satre, Thomas J. MD Author Information Univ of Minnesota/St. Cloud Hospital Family Medicine Residency, St. Cloud, MN The authors declare no conflicts of interest. Evidence-Based Practice 24(7):p 25, July 2021. | DOI: 10.1097/EBP.0000000000001114 Buy Metrics Copyright © 2021 by Family Physicians Inquiries Network, Inc.