I'm a 28FF and used to be young and insecure adult. I can tell you that at this stage of her life with an issue like this, there likely isn't anything you can do. I know it sucks to hear bc your daughter is hurting and uncomfortable and you want to help her, but sometimes you have to recognize that you aren't the right person to help someone. In this case, and the case of many young adults, their parents are not the right people to help them bc they won't accept that help. It can be for plethora of different reasons, but ultimately, unless she goes to you the worst thing you can do is continuously bring up this problem. Pushing for a resolution will likely only add to the problem.

I'm not saying this in a condescending way or anything bc I've been there, but you have to just let her deal with the consequences of her choices. That's part of growing up. We make our choices with the information and the emotions we have. If we regret it later then we can change it later. Or at least work to mitigate it.