The best solution is to keep scorpions out of the house. I learned this after three stings.
All door bottoms need to sealed with (sweeps), (weather stripping), (folded towels), etc.
If you have roof openings, like a fireplace, screen the openings.
Any wall openings need to be sealed.
Some cats are good at killing scorpions, they clench their paws and punch them to death.