Steroids are sometimes used for certain types of PN...like cases caused by autoimmune disease. IF the PN is from inflammation, then steroids can help to reduce the inflammation and the associated symptoms. It all depends on what is causing your PN, as for the best treatment.

That said, even PN from AI disease may not respond to steroids or other immune suppression. There is only a small window of opportunity to treat inflammation to the ganglia from AI disease, before it becomes scar tissue and thus permanently damaged.

I don't believe steroids is a first line treatment for most PN cases.