I've never had a herpetic condition (including shingles), but several years ago lidoderm patches worked wonderfully for my upper back pain. In fact, the patches allowed me to eliminate all prescribed oral pain medications at the time.

For whatever reason, that same upper back pain has returned. But now I am on a different insurance plan (Medicare), and have been told my new lidoderm prescription is not covered because treating pain in the ABSENCE of a history of herpes is not an "approved" use of this drug. What gives??