I just joined Mamasource so I have not read your other post about weaning, however big kudos to you as that can be a struggle so it's good to hear that she is doing well.
As for the milk drying up, it can take weeks. I have heard if you put cabbage leaves on your breasts the supply decreases, call it kinda strange, however my neighbor did this a few months ago after I researched this same topic for her on the internet and it worked. I just googled, cabbage leaves on boobs or something. I've already heard from friends that taking something like Benedryl helps too because of the anahistamine.
If your boobs are just so engorged and really hurt you might just massage them in the shower and maybe try to get a little milk out, I had to do that because man, oh man, did they ever hurt. Sports bra too, I wore mine.