To date, there is no 'known' effective treatment for ganglioneuritis due to Sjogren's. However, that DOESN'T mean that you can't get some mild relief from symptoms or slow progression from supplement use. Anything is possible based upon each individual and severity of the condition. So it certainly can't hurt.

On the other hand, I would suggest not speculating or worrying about a Sjogren's diagnosis until you have one. There are many things that can cause sicca symptoms...even more that can cause PN.

Hopefully your symptoms are not caused by Sjogren's and are treatable.