Well if its pregnancy related it sounds like your milk ducts have some knots in them from whatever bra you wear. Under wire bras cause that a lot. The remedy is honestly to sit there and massage the knots out, it will probably hurt like hell as they release the backup of milk, but it should help when they are gone with the pain.
Oh i see youve already had baby! :) congrats! If ur breastfeeding, try pumping a little bit just to relieve some pressure. Get in a hot shower and massage breasts. Put a hot towel over them. Ice packs may help. If ur not breastfeeding, put cold cabbage leafs in ur bra. It will reduce inflammation and help dry up that milk for you. Watch for signs of fever and red swollen areas as it could be mastitis which needs antibiotics. Hope that helps a little. Take care
Thanks ladies! & yes I am breastfeeding :) I been pumping & feel so much better! !