Breastfeeding problems due to sore cracked nipples? Our hydrogel pads provide relief from breastfeeding problems such as sore or cracked nipples. Just put the cooling pad on the skin. The pillows provide moisture and keep your skin soft and thus relieve the pain of sore nipples between breastfeeding. Due to the nipple area being moist the hydrogel pads create an environment that helps the healing process.