1. Use foundationless frames, particularly on the outside of the group of frames, and particularly when the hive is weak (not full of bees). Then when there is no comb there is no place for the SHB's to reproduce. Where the bees draw comb there are sufficient numbers of bees to keep SHB's under control.
2. When doing inspections, if there are frames with that have drawn combs with 4 or more SHB's and few bees, pull the frame, shake off bees into the hive, and wrap the frames and put in a freezer for 2 days. Then you can pull the frames out of the freezer, let them thaw for about 3-4 hours and return to the hives.
These practices will not eliminate SHB's, but they will not be a threat to ruining the frames in your hive.
Phil