You absolutely do not sound ignorant! tDCS is only offered in three locations in the U.S. (four if you count my kitchen, Ha! Ha!)

Transcranial Direct Current Stimulation treats many forms of neuropathic pain by passing a weak direct electrical current through the brain. Please see my earlier posts in this thread for a description.

For a more in depth review of neuromodulation treatments please see below.

http://www.ncbi.nlm.nih.gov/pmc/arti...3/?tool=pubmed

Hope this helps!