Mandy,

This poor mom with the avoidable mastitis!  If, in your opinion, she got the
breast infection by following Ezzo's recommendations, I think you can tell
her just that.  If you approach it as providing solid, research-based
breastfeeding information, she may take a new look at the whole feeding
regimen the Ezzos are promoting.  This could be your "teachable moment"!
 Good luck!