Teen ptsd

My teenaged daughter has been diagnosed with ptsd after a string of physical assaults at school (the worst of which resulted in a fractured nose). She is getting professional support, but I was wondering if anyone had any suggestions for myself, as a parent, to be sure I'm doing the right things to help her at home. Perhaps you read a great book, article, or have just found something that works; I would just like to know I'm on the right page to help her heal and am not going to be adding any unnecessary strains during her recovery. Thanks 😊