The discussion about nipple blisters seems to be similar to a situation I have seem several times, that is a nipple pore, dilated with a white substance, seeming much like a pimple, and may have a plugged duct palpable behind it. One time, after attempting hand expression with no success, I used a sterile needle (and alcohol swab first) to poke a tiny hole right in the center of the white bulge. I was quite shocked to observe a very small amount of bleeding from the needle site. I did not realize it but there must have been a thin layer of skin cells still covering the plug. It was not traumatic to the mom, in fact she seemed to feel nothing during the needle insertion. The result of this poking about was a long, curled thread of white cheesy material that was easily expressed out of the blocked pore. The mom later reported she used her finger nail (against my advice) to remove more of the plug, releasing even more thick, white matter. Any other similar cases? Carla D'Anna