Answer:
I make a living following the wealthy and beautiful.
I'm a word that's hardly there. Take away my start and I'm an herbal flair. What am I?
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I shift around though always slowly. I never move more than a few inches at a time. A large movement by me can kill many people. I am huge yet unseen by humans.
I can be found in water but never wet
No matter how little or how much you use me, you change me every month.