Medical cannabis has been legal since 2018 but isn't a first-line option....

https://oscar-wiki.win/index.php/How_do_I_avoid_misinformation_about_medical_cannabis_for_arthritis%3F

Medical cannabis has been legal since 2018 but isn't a first-line option. You’ll need a specialist assessment, usually via private clinics, once standard treatments have failed. Speak with a qualified professional to discuss your options.