Recently, a reptile was found at home. What kind of bug is this? What medicine can be cleared? How to prevent it?

This is a kind of salamander, also known as plywood worm, which lives in a humid corner and preys on small insects, which is harmless to people. At home, you don't need to spray a wide range of chemicals. You can pour boiling water into the sewer to burn cockroaches, ventilate more and keep the room dry. Sprinkle some quicklime in the corner to absorb moisture, and occasionally spray some pesticides in the corner. If you see cockroaches, you will be eliminated directly.