Hi @Luce64 ... where abouts are you located?
Heated Wheat Bags may give some localised relief - I tried Curcumin Powder some time back, with mixed results. Some find that Krill Oil may help .....
I've been taking some Medicinal Cannabis Oil inthe last few years & find that it takes the 'edge' off the pain ... and also helps me sleep. If you live in Canberra - you can legally grow 2 Cannabis Plants & you could make your own oil ... (plenty of info on Youtube) otherwise, you can contact online medical practitioners who will do a telehealth call to discuss your issues (some bulk bill) & then you just need to pay for the oil ..... (which, by the way, is a HERB! ;) )
Ask your Onc about it too .... Good luck