Not sure who originally publicized it on this list, but the
www.lowdosenaltrexone has tons of info on it.  It is very, very good for
nearly anything, but seems to be especially good for nerve troubles.  Not
familiar with the particular condition you inquired about, but since the low
dose of the naltrexone does no harm, and helps so many conditions, and is so
very, very cheap, cheap, cheap--- my take is Why on earth not give it a
try??    pj   ps   You will very likely NOT be disappointed.