HELP... I just found my little tweek covered in fleas... She has never had them before. The person downstairs has 2 huge cats and she says her cats have fleas and she has been spraying and powdering her cats. My apartnemt doesnt have any carpeting its all hardwood so i dont think i have to treat the floors. I washed he and combed about 50 fleas off of her, cleaned her cage and bedding. I dont know what I should use that will be safe for her? Any suggestions?