The q-tips probably are from cleaning a pipe and if they are then you've caught it pretty quick or atleast I think you did because I used q-tips when I was an ameture pothead, There are much better methods to it, and you should have her drug tested because it'll ruin her as it did to me....I was smoking a QP a week at one point it can consume people's lives and especially since she was on meth u need to have her drug tested.