i wouldn't, because they tend to track the apiguard around. you don't want that in your honey supers. they only need to be stored for the 4 weeks of treatment....but that puts you into october.
instead of putting them back on the hive, you can put the supers outside AWAY FROM your hives and you house and let the bees rob them out. if you are going to do this, it's best to set the boxes across some polls or something so that they are open top and bottom. they'll have them cleaned out in a day.