After finding the ant hole, rub it back and forth with soft soap several times before plugging it, or plug it with candle oil or other glue, which is not only once and for all, but also environmentally friendly. After the eggshell is burned into powder, it can be scattered in the corner or near the ant nest to kill the ants. If there are ants in the closet, you can put some delicious vegetables such as parsley and celery to drive away the ants. Putting some walnut leaves, tobacco and peppers in places frequented by ants can also play a role in repelling ants. If there are ants in the cracks in the walls of the house, use rubber bands to solve them. Just plug the rubber band in the gap. Because ants are afraid of the smell of rubber bands, they won't come out. It is also useful to plug the gap with toothpaste or candle oil.