Poisonous snake bites are medical emergencies. It usually takes several hours for snake venom to kill. The right antivenom can save a victim's life.
Snake bites can cause severe local tissue damage and often require follow-up care.
First Aid 1. Keep the victim calm, restrict movement, and keep the affected area below heart level to reduce the flow of venom. Wash the bite with soap and water. If the area of the bite begins to swell and change color, the snake was probably poisonous. Cover the bite with a clean, cool compress or a clean, moist dressing to reduce swelling and discomfort.