I would think if already have numb feet after 4 doses it might not be worth the risk if something else works. The reality is you hopefully have a long life after treatment and not being able to feel your feet could have a significant impact on your quality of life. I just had affected toes the last 3 sessions (I had 12) but it took over 6 months to resolve and I struggled with pain in cold weather. My friend who didn't tell the oncologist about her side effects has significant issues. She trips often and doesn't realise she has sustained an injury to her feet as she can't feel it. She withheld info as was scared it would be stopped.
