As a Jain, do not try to suck the poison out. That causes harm and does not help. The Jain principle of ahimsa means avoiding unnecessary violence, but in an emergency you should also act to save life with the least harm possible. ( nhs.uk)

Do this immediately:

• Call emergency medical help now / go to the nearest hospital immediately. Snakebite can become life-threatening, and antivenom is the effective treatment for venomous bites. ( who.int)
• Keep the person still and calm. Immobilize the bitten part and avoid walking or moving around. ( who.int)
• Remove rings, bracelets, and tight clothing near the bite before swelling starts. ( who.int)
• Do not cut, burn, tie tightly, or use suction on the bite. These methods are dangerous and ineffective. ( who.int)
• If the person vomits or becomes sleepy, place them on their side while keeping them still. ( who.int)

If you want the most Jain response in one line: protect life, do not perform harmful or false remedies, and get medical help immediately.