Pets (Cats & Dogs) are topically treated with Frontline spray. In most cases expect to have the pet(s) coat shaved off or trimmed back significantly. Drying time will be approximately 20 minutes. If there are multiple pets at home, they too will need to be treated. To effectively arrest the infestation, pets dwelling areas, i.e., your home, indoors and outdoors should be treated within 48hrs of pet(s) treatment. Ideally within the day in close proximiity of the completion of your pet(s) treatment. Pets are to remain dry for 48 hours following the spray application so that the spray can do it's job.