Engorgement is sometimes apparent in the areola or the breast or both, in one breast or in both breasts. (you may have just one engorged, sore swollen breast). When the “Milk Comes In" Between day 3 and 5, a mother’s milk changes from colostrum into mature milk and her breasts become swollen with breast . Nov 16, · Your caregiver may suggest any of the following: Wear a bra that fits correctly and provides firm support. A well-fitting bra that is not too tight may decrease breast Place ice packs on your breasts. This helps decrease breast swelling and .