hi senior
i make a thc based topical, and a cbd based topical for my parents. both are used to combat arthritis. the thc topical is for immediate pain relief, the cbd reduces the inflammation for longer term control. both are used through out the day depending on need. in our experience, one type is good, both work better together.
i make the base oils using a simple method with an instant pot -
find out about it here - once the oils are made it is easy to manipulate them in to different forms useful for medicating. sweet sue curates that thread and many others.
i am also starting to make glycerin based tinctures for sub-lingual application. it is a good approach for immediate whole body relief, with both thc and cbd based tinctures, targeting different things. they take a long time to infuse though. months.