I think all the drugs mentioned are part of the same family. if one is not working then try another. Also google the difference, eg, WHAT IS THE DIFFERENCE BETWEEN AMITRIPTYLINE AND THE DRUG YOU ARE TAKING ? IT WILL TELL YOU. I have great relief with amitriptyline but most importantly KEEP KEEP moisturising I also find (don’t laugh) Vick’s vapor rub a great relief and ALOE VERA PROPOLIS IT’S SOLD WORLD WIDE. The PRoduct is made By
“FOREVER LIVING” you may need to ice sometimes but 85% less than before. One last tip, as BRP is light Senitive ware long sleeves even in bed or keep arms under sheet. Good luck