To prevent your dog from peeing at the door, you can spray some toilet water, lemonade, air freshener, deodorant, etc., which can cover up the original smell of your dog's urine. If you want to prevent your dog from peeing at the door, you must also train your dog to urinate at a designated location. Take your dog out about half an hour after eating, at least twice a day. After a period of time, your dog will develop a habit. I will no longer urinate and defecate at home.