Randomized trial of lidocaine ointment versus placebo for the treatment of postpartum perineal pain.

Objective: To estimate the efficacy of lidocaine ointment in relieving pain after a vaginal delivery with an episiotomy or perineal laceration.

Methods: In a randomized, double-blind, placebo-controlled trial, 200 women received lidocaine ointment (n = 108) or a placebo (n = 92). Pain relief was assessed by the amount of ointment used (weight of jar before use - weight of jar after use), total number of pain pills used, and a pain questionnaire.