Hi, My mother is gng through the treatment for breast cancer stage 4 and initially for first few months nab pacilitaxel chemo has been given and that time also in both legs nerve pain was coming on and off but little servere and that time ultracet, progaba and all given, then treatment changed to palbo and letrozole and after then no pains for past 6 months and now again suddenly she is feelng that nerve pain in both legs as little severe. So again progaba and ultracet can be taken? And will palbociclib or letrozole also affects nerves?