Check with your hired exterminator or pest control specialist for detailed instructions about what to do after sprays. Some services require residents and pets to stay out of the treated area for hours, while others allow for the resumption of regular routines as soon as the treatment is dry. Deep-clean the affected areas before your treatment, and once your service is complete, make sure to keep a tidy home or business so the same pests don’t return. You may see an influx of pests after your treatment, which is normal as chemicals do their part.