I think that helping her rejoin classmates on some level before or for graduation is important. Therapists don’t always prove as helpful as real life resolutions.
We ran into a well-respected MD who was accused by 3 teens of molestation. He continued to practice under some restrictions. It does happen. I would not think fabrication unless there was a reason to. Ditto with teachers, who often have little understanding of or patience with chronic health issues.