So um I've got a small sore on one boob from wearing breast shells a few nights in a row to catch leaky colostrum... 
I would like to maybe put something in the freezer and then in my bra to soothe my sore boob, as sticking my cold fingers in there feels lovely but I can't do much else with a hand stuck in my bra and my hand keeps warming up too quickly.
Can anyone think of other things that might both a) freeze and b) fit in my bra?