snakebite symptoms of a pit viper bite special

Pit vipers, such as the rattlesnake , copperhead , and cottonmouth (also called water moccasin), are poisonous (venomous) snakes. They leave one, two, or three puncture marks on the skin, but you won't always see any marks. Symptoms of a pit viper snakebite usually appear within a few minutes to a few hours after a...