Hello Friend, Good that you are seeking a help here. Medicine are just one part of any psychic treatments and they help in mostly in suppressing the symptoms. To get a permanent cure, she need to start non medicine treatment plan in parallel like, few lifestyle changes, self therapies, dietary changes, excersise, counseling support etc.
If she is not on any of these, would advise her to a take a professional psychology expert help in identifying such alternative solutions.
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Feel free to reach out to me online for further evaluation and recommendation.