Effects of low and high-frequency transcutaneous electric nerve stimulation (TENS) in Post Episiotomy Pain Relief.

INTERVENTION: TENS treatment with four silicone‐carbon electrodes will placed on the skin next to the episiotomy, i.e. in the puerperae’(mothers who have just given birth), thigh and gluteal muscles region. Puerperae were randomly set into three groups: TENS high‐frequency (THF); TENS low‐frequency (TLF) and TENS placebo (TP).TENS high‐frequency is applied with 100Hz frequency and 100 microseconds pulse. TENS low‐frequency is applied with 100Hz frequency and 5 microseconds. The placebo group is identical to the treatment group, but the unit do not provide current. This is a one off intervention with 2 hours the duration. CONDITION: Pain from episiotomy PRIMARY OUTCOME: To evaluate the effectiveness of TENS low and high‐frequency as a pain relief resource applied in puerperal women that present episiotomy. SECONDARY OUTCOME: Evaluate if the pain in the episiotomy to interfere on the development of the daily activities. INCLUSION CRITERIA: Low risk pregnancy primiparous, older than 15 years old, literate, understanding the Portuguese Language, aware of time and space, post‐natural childbirth, submitted to episiotomy with stitches, presenting pain in the episiotomy, and absence of any genitourinary pathology.