"I see references to Rick Simpson oil and RSO online but it is unclear what it is and why people use it. Is this something you buy or make? "
Rick SImpson Oil, Hemp Oil, Hash oil or FECO (full extract cannabis oil) is an extract of cannabis flowers (and sometimes leaves) often used to treat serious medical conditions. Its constituents, potency and efficacy will vary based on the qualities of the strain of cannabis used, and on the methods used for extraction. Many people are now producing their own version of this oil, and some of it is of poor qaulity if not outright worthless. Obtain this medicine from a trusted source and pay close attention to the effects on the patient.