Transcranial direct current stimulation for chronic headaches, a randomized, controlled trial.

Background And Objectives: Chronic headaches are a frequent cause of pain and disability. The purpose of this randomized trial was to examine whether transcranial direct current stimulation (tDCS) applied to the primary motor cortex, reduces pain and increases daily function in individuals suffering from primary chronic headache.

Materials And Methods: A prospective, randomized, controlled trial, where participants and assessors were blinded, investigated the effect of active tDCS vs.