The nipple shields from Mininor can help relieve pain from sore or cracked nipples, enable you to continue breastfeeding and help you if you have flat or inverted nipples. Mininor nipple shields are for breastfeeding mothers, who need help due to the follow causes: The nipples are cracked and the mother needs a protective barrier to relieve some of the pain while breastfeeding and to prevent further damage to the breast. The nipples are flat or inverted causing the baby to have difficulty latching on to the breasts.