Answer:
You can read me both ways I wear; One way it's a number reversed a snare.
I am the word that has three syllables and twenty six letters.
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
My teeth help me suck.
I can swim but never get wet. I can run but never get tired. I follow you everywhere but never say a word. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?