Mayb not appropriate i apologise,bt does cannabis oil cure cancer, my sister has cancer, i'm from ireland,thinkn of goin to california to try it?

No: Unfortunately, neither cannabis oil, peppermint oil, lemongrass oil, lavender oil, nor any other snake oil cures cancer. Cancer is not one disease, but a group of many diseases. Some cancers are curable, others are not. Treatment is almost always available, up to a point where treatment is no longer effective or where a patient no longer wants to be treated.