Hi A., The best thing you can do is keep emptying the breast. Try using a warm compress over the area for 5-10 minutes, keep getting the compress very warm, apply it to the area. Then massage the nipple between your thumb and forefinger, in a downward angle, until that clog releases. If this is actually what you have, is it at the nipple, or on the breast itself? Anyway, have the baby's nose point over the area, too, when you nurse, to help relieve the congestion in that area of the breast. As long as the area is being emptied well, after the clog is released, it should subside. You can use the warm compress to the breast area too, if that is the congested part. But frequent and complete emptying is the best, use Motrin, good for inflammation, as directed on the bottle. (Unless you're allergic, of course.) Let me know how it is going. J. C. Lactation Consultant. (See add on this web site)