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[Can breastfeeding promote acute pain relief in newborns?].

This review study aimed to identify the efficacy of breastfeeding and its component aspects (contact, sucking, odor and milk) as nonpharmacological measures for pain relief in newborns. 14 articles from Medline/PubMed were analyzed. We observed methodological differences related to sampling, painful procedures, periods, treatment administration and variables measured. Breastfeeding and its component aspects were perceived as efficient to relieve acute pain. We observed the need for studies to evaluate the analgesic effect of breastfeeding before the painful procedure until recovery. This period is sufficient to achieve the analgesic effect after milk absorption. The interaction between all breastfeeding components must be considered.