I think it's time to try a crop bra. The clue that she may feel relief when propping her crop on the 2 x 4 points to a crop hanging too low to empty properly. Go back to my article and there are directions on crop bras and how to adjust them over a few days to get the proper fit and drainage.
Hopefully this is what got her into this mess, and a bra will get her out of it.
Hopefully this is what got her into this mess, and a bra will get her out of it.