Sore breasts with a lump also could be a sign of a plugged milk duct, in which a particular duct gets clogged. To greatly help unclog the duct and simplicity your pain: Take warm showers or use warm compresses on the area, massaging the region, several times a full day. Then, breastfeed your baby immediately. When breastfeeding, position the infant therefore the nose is pointed toward the clogged area. If it doesn’t work, use a manual or electric powered pump for a couple minutes to help acquire the clogged milk. If the lump doesn’t go away within a few days, or if any fever is had by you, chills, aches, or red streaking, call the doctor.