If it is inconvenient to work during the day, use it before going to bed at night-wipe your navel, put on a laxative paste, and then tie it with a belt for half an hour. Adjust the heating and vibration level of the seat belt according to the comfort. Take off your belt after half an hour, and use it for about 8 hours to tear off the laxative patch, that is, wake up the next morning and tear it off!