Or just make sure she has plenty of room to lay in the brood area, and she will move back down because the bees will backfill the area in the top super as the brood hatches which will prevent her from laying there.
If you do the excluder route, make sure there is an upper entrance for drones to exit, otherwise they are trapped and will die and clog up the excluder.
Nothing really to worry about, worst case if you want to havest is just leave the frames with brood as part of the bees share.