Yes, @WhiteLight - you take the oil orally. There is currently a HUGE movement trying to get Medicinal Cannabis Oil made legal and on PBS as it is a 'natural herb' - as the alternative are opioids and other strong drugs that are highly addictive & people
can die from overdoses.
Depending on the strength of the oil that is prescribed for you - you may need fewer drops, too!! Everyone is different - and when starting on the oil, you 'work up' gradually, from a couple of drops an hour to the number of drops needed to reduce your symptoms. That is then 'your dose'. It is called 'titration'.
AI side effects aren't relevant to the size of the cancer eith .... they can hit anybody, hard! :( Luckily, some get NO side effects!
My cancer was only small too - and like you, I chose to do the 5 years for AIs .... then, in discussion with my Onc, I've increased it to 7 years - so I finish up on AIs this time next year. ;)
Check out this thread for lots of info on Medicinal Cannabis Oil - the movie, in particular ....
https://onlinenetwork.bcna.org.au/discussion/19569/medicinal-cannabis-oil-amp-reduction-of-pain-improvement-in-well-being/p1take care