An oxidizing agent which is used as a disinfectant, antiseptic, deodorant and for hair bleaching. At latest update relevant published data were not found on excretion into breast milk. It is found naturally in breastmilk (Al-Kerwi 2005) and can be produced by certain lactobacilli (Martin 2006). Because of the small dose used and poor absorption into plasma of most topical dermatologic preparations, it is unlikely a significant excretion into breast milk. Do not apply it on the breast to prevent ingestion by the infant; otherwise, do it just after a meal and clean the nipple thoroughly with water before the next feed.