There are literally over 100 causes of neuropathy. Diabetes (even pre-diabetes) is top of the list and you should be thoroughly checked for this. Also consider any previous antibiotic use (especially Fluoroquinolone class--Cipro, Levaquin, etc).

Then look at alcohol consumption, infections, toxins, injury and/or compression issues, etc.

You need a doctor that will explore causes, as the best way to treat is to address to actual cause, not just treat symptoms. But that leads me to ask...did he even offer any treatment options for your pain until you get into pain mgmt?

To answer your question: Yes there is hope...if you find the cause and/or you find the right treatment. The only way to know IF it will get worse, is by knowing the cause or waiting to see if it gets worse. If it is from pre-diabetes, then getting your glucose under control can reverse your symptoms. If you don't treat your diabetes, then it the SFN will definitely get worse. Just stay on top of your doctors to follow up with investigating the cause in order to find the appropriate treatment.