What is the primary treatment for a person who is bitten by a unknown snake?

What is the primary treatment for a person who is bitten by a unknown snake?

Antivenom antibodies

Wash that area with soap and water

Wash the spot with a hot water with a soup.

Fallow up,objarvation, type of bite,tt, ref to hc.

venomous. for follow up the person must get tetanus shot