Nurse frequently on the affected side.  Nurse in different positions. One position that mothers find especially helpful is the all-fours position. (To use this position lay your baby on his back.  Get on your hands and knees or elbows and knees. Gravity will help get the milk out as baby sucks on the breast hanging down.) Whatever position you use, it is especially helpful to have your baby’s nose and chin in line with the hard area. A few minutes of heat applied to the tender area before nursing can also be helpful. Gently massage or apply pressure to the hard area after applying heat or while nursing to help dislodge the plug.