Leeches are tenacious. Ponds, lakes, streams and rice fields can grow healthily ... There are many animals that can kill leeches, such as lobsters, eels, mice and other fish, snakes such as cobras and frogs eat leeches because of their powerful stomachs ... Waterbirds also eat leeches, such as cranes ... lobsters, frogs and eels. If you are besieged by leeches, don't be afraid. As long as you gently rub the balm on them, they will be gentle and considerate to you like a girl in love, and then snuggle up to your upper or feet and slide down slowly, without any harm to you. . . .