Anxiety attacks

Ladies please help me give me advice how can i help my sister fight anxiety 😔 its been a rough week from clinic visits to hospital visits due to my sisters anxiety attacks where she feels she is getting controled by it . She has helped me thru everything now its my turn . I need something so she can feel like she use to before 😔😔 It hurts me so much seeing my sister cry because she scared she is going to die or go crazy.