Self-Injury Support Group
Whether you or someone you know or love struggles with self-injury, this is the community to discuss your experience, find support, meet others going through the same, and get advice on how to stop. Working together, we can help find alternative coping skills to reduce the urge to self-harm.
I never went to anyone when I was cutting, so I don't have much experience in having any acomodations. But if I had told, I'm not sure I would even have wanted/gotten special accommodations.
But in your daughters case, I would maybe suggest that her teachers pay more attention to her in class and be a friendly face for her. I'm not sure how much a school can do to help her, but perhaps meeting with the counselor there every once and a while would help her adjust to school again?
Sorry I don't have much advise on this one, but perhaps others will have more insight.