After spraying pesticides, it is generally safe for pets to return to the treated area once the pesticides have completely dried, which typically takes about 1 to 2 hours for routine applications. However, the safe re-entry time can vary depending on the type of pesticide used, the application area, and the specific product instructions. Some more potent chemical treatments may require keeping pets away for 24 to 48 hours. Always refer to the pesticide label or consult the pest control professional for exact waiting periods. During treatment, it is best to keep pets out of the area to avoid direct exposure. If pets accidentally ingest pesticides or show symptoms like vomiting, drooling, or lethargy, veterinary assistance should be sought immediately.