Sleeping on stomach
Sleeping on towel to absorb leaking milk; edge of towel acts the same as a
        tight bra would.
Too much massage and pressure on sore area, thus causing it to stay inflamed
Axillary breast tissue (no outlet for milk that is produced)
Carrying purse on that side
Improper positioning of baby sling or backpack


Other ideas of things to try:
Change deodorants and/or stop shaving underarms
Don't apply deodorant immediately after shaving underarms
Drink more water
Eat a little bit more salt.


Have a nice day!

Beth Hilleke              [log in to unmask]