Phonophoresis of dexamethasone sodium phosphate may manage pain and symptoms of patients with carpal tunnel syndrome.

Objectives: This study was designed to compare the efficacy of iontophoresis and phonophoresis of dexamethasone sodium phosphate (Dex-P) treatment for mild to moderate carpal tunnel syndrome (CTS).

Methods: Fifty-two hands in 34 consecutive patients with mild to moderate CTS confirmed by electromyography were allocated randomly into 2 groups. One group received iontophoresis of 0.