I recently gave a CERPS session at LLL of IL Area Conference on Sore Breast:
 Plugged Ducts, Mastitis and Yeast" and found in R. Lawrence, a reference to
this situation.  One of her suggestions was to increase salt intake ( to
increase fluid intake) and I believe adding lecithin to the diet.  Apparently
a high fat diet (or the body's ability to "process" foods high in fat) can
also predispose a mom to this.  Please e-mail me privately if you would like
a copy of my outline and bibliography.  I did extensive research at the CBI
at LLL HQ.
Mary Kay Smith
Romeoville, IL