Ros, For the very painful white blister at the opening to a milk duct, I have had good luck with soaking in a solution of epsom salt--2 tsp to 1 c water. The es. is first disolved in very hot water then further water added to warm temp. The epsom-salt soak before each feeding opens the area and is less traumatic than lancing. And I believe the es. aids in healing. I recommend continuing this procedure until the duct is free of the accumulation. Pat Gima,IBCLC Milwaukee