R.W.
My neighbors daughter had scabies a few years back and the doctor said she got them from their dog. You have five pets in the house so she may have not gotten them from the friend that stayed but from one of your pets. Is her friend a dirty person. They usually come from dirty households. But I do know that scientists are making new finds every day. But the good news is if your home is clean, your pets are clean and you did all the treatment correctly she shouldn't get any more new spots. She shouldn't feel "gross" she will come in contact with all kinds of illnesses growing up, like head lice. She may get them and she may not. It's not her fault so explain it to her that it's just a part of life.