When you find a leech bite, do not pull it forcefully, otherwise the suction cup will remain in the wound and aggravate the injury. Use vinegar, alcohol or saturated salt water, soak half a cotton ball and place it on the head of the leech. If you hit the head with your hands, slap it or prick it with acupuncture, or use smoke oil to stimulate its head, it will automatically detach from the skin. After the leech falls off, the local bleeding and pimples on the wound will disappear on their own, and generally will not cause any special adverse consequences. Just apply iodine to the wound to prevent infection.

An important reason not to pull out a leech is that the more you pull on the leech, the tighter the leech's sucker becomes. The leech itself is very fragile. If it is pulled off, its sucker will remain in the wound, which can easily cause infection, ulceration, etc.

Extended information:

Notes:

1. Before entering the water, apply some soap, rice field protective ointment, and mosquito repellent oil on your legs, feet, etc. , cooling oil or smoke oil.

2. If a leech bites a certain part of the body, the correct way to deal with it is to tap its body with the palm of your hand to make it roll down.

3. Wear shoes when going into rice fields, ditches, rivers, etc. to prevent being bitten.

4. You can use liquid soap, concentrated salt water, tobacco oil, or alcohol to drop on the front suction cup, or burn it with a burning cigarette to let it fall off on its own.

5. Apply pressure to the bite to stop bleeding, and apply iodine to the wound to prevent infection. You can also sprinkle tobacco juice, lime water, etc. on the leech, or roast it with firewood to loosen it, or you can use a knife to cut it off.

Baidu Encyclopedia-Leech