There’s no cure atm due to it being coded in DNA but there are some treatments , Whereabouts are you based brother? I only ask because of medication prices my best recommendation (AND ONLY ADVICE BTW!!) would be to try a combination of;

• Naproxen ( an old school anti-inflammatory Better for rheumatic pain that “common” NSAIDS like paracetamol
• Sulfaszines a good one IF it works
• and to top it off do some research into Gabapentin or in some countries it’s called nerotonin it’s a great non opioid painkiller that has really helped my mum out!!
  I’ve gotta say though that this isn’t medical advice and you’ve gotta talk to your family doctor/GP but these are low-cost effective treatments that have helped my mum out!!