What do systematic reviews say?

Paracetamol (single administration, any dose) vs placebo

Paracetamol (single administration, any dose) may leads to higher adequate pain relief as reported by women compared with placebo (low certainty).

• Paracetamol/acetaminophen (single administration) for perineal pain in the early postpartum period 2021 · Cochrane Headline outcomes only
  RR 2.14 [1.59, 2.89]
  10 studies · 1279 participants
  Low