A study published in the Journal of Clinical Investigation and the National Institute of Health discovered that CBD can provide treatment for acne. Researchers used cannabis-derived Cannabidiol on the human sebaceous glands and came to the conclusion that CBD acts as a highly effective sebostatic and anti-inflammatory agent by inhibiting lipid synthesis.
Pharmacology published a study in 2016 looking at medical marijuana for migraines, specifically in relation to its effects on serotonin, with very positive results. You’ll notice that neither study looked at CBD in isolation from other cannabinoids (which is an issue with a lot of research on CBD and pain). Truthfully, the research on CBD alone just isn’t sufficient to make any pronouncements about its effects on headache pain.