I've had a white spot on my nipple since shortly after my baby was born, he is 2 months old now. At first I assumed it was a milk bleb and tried everything to resolve it (including piercing and lifting the skin with a sterile needle). There are no lumps or feelings of a plug nearby. It goes down into the nipple rather than protruding out like a pimple. So I don't think it's a bleb anymore.
Baby has no signs of thrush and since there is only one spot I don't think it's that either.
So I am left to assume it's some kind of crack/abrasion. This isn't a stretch since my nipple is always slightly creased after nursing. I had 4 LC's investigate why before leaving the hospital and they all said the latch looks right but it still is a little compressed, they guessed it would get better as my baby grew. Currently I am trying a saline bath after nursing and polysporin ointment after that. It doesn't seem to be making a difference. Can anyone suggest what else I can do? It's quite painful on top of my perpetually chapped feeling "overly sensitive" nipples (in the words of the last LC I saw).