Wait them out; most cicada outbreaks are temporary and end on their own
Keep windows and doors closed
Repair or tighten window and door screens
Use weatherstripping to seal gaps around doors and windows
Turn off unnecessary outdoor lights at night
Avoid watering trees and shrubs excessively
Protect young trees with fine mesh netting or row covers
Wrap small trees and shrubs with netting before cicadas emerge
Remove cicada shells and dead cicadas from around entry points
Use a hose to knock cicadas off plants and structures
Prune damaged branches after the infestation passes
Use sticky barriers on tree trunks only if labeled and safe for the plant
Contact a licensed pest control professional for severe infestations