D.N.
Like others have said, if the stay is only a week or 2, I woul dnot send a care package. Letters may also not get received. My son goes to camp for 7 days. I mailed a card to him the day before he left. He got it the day before he came home. One thing that was great for him was a blank notebook that he could write what they did and he got his new friends numbers and email to keep in touch. If you really want to include something just for her, you could make little presents that she could open each morning or evening.