@bustrbrwn22 @lorirenee1 and others - here is some information from 2015 on Zonisamide but it doesn't mention that it is very effective for pain relief. I would run any alternative treatment by your doctor or a pharmacist to make sure there are no interactions or side effects with medications you are already taking...just my two cents.

Zonisamide for neuropathic pain in adults - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6485502/