You will need to spray everywhere your pet regularly goes within the house, and in your car too. But before you spray, you will need to prepare the house properly. Thoroughly vacuum all floors and upholstered furniture, including pet beds. Remove all your pets, including birdcages, remove or cover fish tanks and aquaria, and turn off aerator pumps until the room has been ventilated after spraying. Extinguish all sources of naked flame, including pilot lights on gas fires, ovens and boilers.

After spraying, evacuate the rooms affected for half an hour before ventilating thoroughly. Vacuum daily for a week after spraying, as this will encourage flea pupae to hatch out so that the emerging young adult fleas will come into contact with sprayed surfaces. Most flea sprays are completely safe to use in homes with pregnant mothers and crawling children when used according to instructions.