If you are bitten by a cobra, first sit still in place and avoid activity, then ligate the proximal end of the wounded limb with a ligature to block the blood flow and prevent the venom from circulating through the bloodstream and invading the whole body, resulting in systemic poisoning. Next is the local treatment of the wound, after repeatedly rinsing the wound with clean water, if there is a suction cup or a fire canister can be given negative pressure suction, as soon as possible to suck the venom or blood out of the body. Again, send the patient to the nearest hospital with antivenom as soon as possible, and do not make the patient move on his own when carrying him, but try to carry him lying down. If snake medicine is available nearby, you can give snake medicine orally or apply snake medicine externally, both of which have an antitoxic effect. If the patient has difficulty breathing, or even if he or she suffers from respiratory arrest, he or she should be given CPR on the spot and call 120 for medical assistance.