Answer:
Poisonous snake bites need immediate emergency room care because you will need anti-venom to counteract the snake's poison which can spread quickly through your bloodstream.
Non-poisonous snake bites can be treated with soap and water, alcohol and an antibiotic ointment like Neosporin to be prevent infection and then cover it with a bandage. Check the area daily for any signs of infection such as redness, swelling, or pus-like drainage. If present, get yourself to a doctor.