This trial will be performed to compare the effectiveness of oral tramadol versus oral celecoxib for the management of perineal pain following episiotomy or perineal tear repair after spontaneous vaginal birth in obese women

Pain after episiotomy or tear of perineal tissues during childbirth is often inadequately treated and may be severe. Not only did perineal pain negatively affect the physical and mental functioning of the woman, but also it might decrease the success of breastfeeding and reduced her ability to care for her child. The methods of relieving perineal pain included medication and non-medication. When the perineal pain was mild, the most common analgesic used was acetaminophen. Whereas the perineal pain was more severe, other drugs had been chosen such as opioid, non-opioid, and a combination of both opioid and non-opioid analgesics

Inclusion Criteria:

• Age:18-35 years
• Obese women with BMI ≥ 30.
• completed full 37-weeks gestation.
• spontaneous vaginal delivery with medio-lateral episiotomy or perineal tear requiring repair.
• Singleton alive fetus.

Exclusion Criteria:

• known allergy to investigated drugs(tramadol or celecoxib).
• regular use of analgesic drugs before or during pregnancy.
• any medical condition known to be potentially exacerbated by opioids, including alimentary canal disorders, hepatic and renal disease.
• instrumental vaginal delivery.
• 3rd or 4th degree perineal tear.
• severe postpartum haemorrhage (>1,500 ml).
• complicating maternal diseases (pregestational/gestational diabetes mellitus; bleeding disorders; pre-eclampsia and other hypertensive disorders of pregnancy).
• epidural nor combined spinal-epidural analgesia in labour
• a history of peptic ulcer,asthma,thrombocytopaenia.