Answer:
I have cities with no people, forests with no trees, and oceans with no water. What am I?
I am a tool for fairies.
I am always around you but often forgotten. I am pure and clean most time but occasionally rotten.
I may be of the eye, in order I am pie. In my center there is a star, I keep medics where they are. What am I?
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?