Since only extensive application of the most potent corticosteroids may cause systemic effects in the mother, it is unlikely that short-term application of topical corticosteroids would pose a risk to the breastfed infant by passage into breastmilk. However, it would be prudent to use the least potent drug on the smallest area of skin possible. It is particularly important to ensure that the infant's skin does not come into direct contact with the areas of skin that have been treated. Only the lower potency corticosteroids should be used on the nipple or areola where the infant could directly ingest the drugs from the skin; topical betamethasone should be avoided on the nipple. Betamethasone ointment appears to have no advantage over lanolin for treating sore nipples during breastfeeding. Current guidelines allow topical corticosteroids to be applied to the nipples just after nursing for eczema, with the nipples cleaned gently before nursing.[3,4] Only water-miscible cream or gel products should be applied to the breast or nipple because ointments may expose the infant to high levels of mineral paraffins via licking.