Apply cold compresses to your breasts and under your arms between feedings. Cold can help reduce swelling. Use a layer of fabric between the compress and the skin. The use of heat immediately before nursing can help the milk let-down. Taking a warm shower, leaning over a basin of warm water, soaking in a warm bath, or applying warm compresses or a heating pad may help.
Moist heat is best.
Gentle breast massage can also help the milk flow more readily. If the nipple and areola are swollen, don t try to nurse without softening them up first. Hand express or pump a little milk from your breast to soften the nipple and areola before trying to nurse. If your breasts remain full, knotty, and tender after nursing, you may want to pump for 5-10 minutes to remove all the milk that comes out quickly and easily. Removing the milk will relieve the pressure and reduce the swelling, softening the areola and making it easier for the baby to latch on.