There are references listed at the bottom of this page. I'd start here if you haven't seen them:
http://www.kellymom.com/bf/concerns/mom/breast-abscess.html
In Selecting and Using Breastfeeding Tools (Genna) she discusses the use of Tegaderm transparent film dressing to stop leakage from surgical sites on the breast (but not the nipple) while pumping or nursing. I'd look into that.
Erin Michaud, LLLL, NMC, CLC
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