Hey man! The trick is to attack the pain from both angles which is applying topical to the wrist as well as dosing CBD Oil twice daily. Strengths are all dependant per person but 500mg is best place to start. 250mg will have you questioning it working. I actually find if you can get capsules they are better and you dont have to taste it. it might normalise it a bit for her. With regards to the topical balm 'CBD Xtreme 350mg' is the best i've tried. I'm pretty sure a big CBD company in Dublin have it repackaged as their own.
I can tell you now, this shit works. Maybe not necessarily for everyone but my mum is going through exactly the same thing. The balm relivers pain within minutes but not for long. Thats were the oil/ capsules come in. You actually have 2 different CBD receptors in the brain long story short they both can block different paths of pain in the brain. How the brain routes and handles the pain. Hit me up if you need anymore advice on CBD mate I could go on for days. also hook you up if you need any! All the best