How to deal with snakebite early

How to deal with snakebite early? After being bitten by a poisonous snake, early first aid treatment includes ligation. For example, the bite site is the back of the hand, so the general wound is tied up about five to ten centimeters above. The tool can be cloth, rattan, and belt if the leg is injured. It can reduce the diffusion and absorption of toxins. To pierce the skin depression, it is to block the venous return of the body surface, but it cannot be too tight, which will cause ischemic necrosis of the patient.