CBD

Unfortunately the "cbd" strains that everyone says is the best and what you need are held by companies that will not release their seed for that strain. They keep the strains unavailable for their profits. We can buy their products but not their seeds.
Don't be afraid of the thc in the mix. The effects of thc are noticeable when the thc is heated and using a salve does not heat the thc. Body temperature is as hot as the thc gets so no effect.
That's a salve, not an ingestable product.
Otherwise, you just have to buy different products from different manufacturers and try them out. Find the one that you/her likes and buy from them exclusively.
Or learn what she likes, buy the beans and grow your own and make your own. .
Remove the pharmaceutical companies from your circle of life.