My friend was bitten by dog and then he used that hands to remove dirt and not wash the wound by water because we came out to eat food. He was unable to wash his hands and used only water for his hands. My hand also came in contact with his hands and I was unable to wash my hands and then I ate food with that hands. I haven't taken rabies vaccine. It is 20 days from that incident. Should I take anti rabies. Please reply me fast.