i received the medela PISA through my insurance and initially tested out the medium sized shields. i had checked out the online guide for fit and according to the pics i needed smaller ones. i purchased the next smaller size on amazon from a company called MayMom and was using those for a few weeks but still noticed some soreness around the nipple when I was done pumping. I decided to test-drive even the next smallest size but this hurts too. Picture wise it seems that the XS shields should fit, but i'm curious to whether or not it's really supposed to be this sore with pumping? i wanted to buy a few sets for going back to work but wanted to make sure i had the sizes down right before doing so.
TTC#2
Our little IVF miracle born 5/7/2014

Re: breastpump shield advice