Time taken to cure PN in toes?

I'm a 27 years old female, currently WFH & need to report on-site from December'2021. I've been experiencing sharp pains in my toes since 1.5 months. After examining my health checkup reports, the neurologist confirmed to me that I have vitamin B-12 deficiency & it appeared to be a mild case of peripheral neuropathy. So as prescribed, I have been taking Nuzen 1 tab & maxmala 50mg 1tab for about 2 weeks. I didn't feel much improvement in pain reduction, thankfully the pain didn't increase as well, but it was enough to make it challenging to focus during my working hours. So the neurologist advised me to take an ultracet only when the pain is unbearable & has replaced maxmala with maxgalin 75 1tab. I'm trying to understand how long it takes to completely recover from peripheral neuropathy in toes caused by vitamin B-12 deficiency (does it take 6 to 12 months as per what I came across on google?)