I would say try edibles as others have had positive experience and relief, but my body digests it too quickly and usually doesn't do much (tricks to eat high fat food before, but doesn't always work), so I haven't had too much luck.

However,

What I actually recommend, and has helped for many of people, is the Phoenix tears/ Rick Simpson oil regiment.

You can buy premade oil marketed as such or Rick Simpson provides diy on how to do this yourself.

Essentially it is ingesting small amounts of concentrated cannabis oil daily, like taking a prescription.

It vastly helped my mom's Chrons and I know of a few people help with chronic back pain