If you research this you'll find that credible sources indicate that chemo induced neuropathy can last months, years or even be permanent. I first experienced symptoms just weeks into treatment in 2020 but didn't know the cause. Two oncologists failed to even diagnose it. In 2021 I participated in a clinical trial for CIPN. Either I got the placebo or it didn't work for me. Results not yet published. Four years later I still have it. An oncologist told me during the trial that symptoms improved mostly during the first year. Most of the pain disappeared during that time, but I'm left with numbness and balance issues.