Posting for traffic. Help!! We don't own a cat but we're pretty sure a cat has got into DD2's bedroom and weed under her bed when her windows have been open during the day. We have tried lots of things: washing carpet twice, putting bicarb down, putting talc down, spraying it with zoflora pet solution, spraying it with special cat wee spray, taking up the carpet and spraying the underneath and underlay. All this has only had a slight effect on the smell! We have left her windows and door open to air it but nothing is working! The smell of ammonia is horrendous. Please, please, does anyone have any ideas?