Answer:
I'm really blue but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt.
I am the same written forward backward and upside down.
I am a food with 5 letters. If you remove the first letter I am a form of energy. Remove two and I'm needed to live. Scramble the last 3 and you can drink me down.
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
I am always coming but I never arrive. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?