I have heard of success with Transdermal patches for lower back pain. You may need to try both the 1:1 ratio of CBD to THC or the 3:1 ratio to see which works best for you.
1:1 https://www.hellomd.dev/products/5b6e1bc496120c00012c699c/11-releaf-patch
3:1 https://www.hellomd.dev/products/5b6e072996120c00012c691e/31-releaf-patch
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