After spraying insecticide, keep the windows open for ventilation for about half a day before allowing cats to enter. After spraying the medicine, the owner should clean the room promptly, especially the corpses of insects, to prevent the cat from accidentally ingesting the medicine and causing poisoning. Pay attention to the cleanliness and ventilation of the home at ordinary times, so that there will not be too many mosquitoes. The owner should also regularly prevent and deworm the cat, which is conducive to the healthy growth of the cat.