are blood-sucking worms, whose mouths work as suction pumps to draw
blood out without causing any pain to the host because of the anesthetic
in their saliva. One of the easy ways to get rid of them is to put some
salt on their body. The salt draws all the water from inside the
leech's body leaving it dehydrated. Although, you shouldn't put salt on
leeches when they are attached to your skin. It can make them vomit back
into the wound which can become infected.