Best CBD product for pain relief?

[Pwrpuffgirl]

Has anyone came across a cbd product that genuinely works for pain? My mother suffers from chronic pain from several different ailments, but mostly due to a degenerative disc disease. She’s regularly tested, and cannot have thc. Also, does anyone know of any products with low thc and mental effects, that work for pain? She could possibly get a medical card, but is not interested in the mental high, just desperate for pain relief. She’s built a tolerance to her current meds and is not given the option to increase dosage. In my opinion marijuana could amplify the effects of her current pain medication and give her some relief. Thanks in advance for any help!