Can I drink kombucha tea before and after surgery?

Made with tea, sugar, bacteria, and yeast, which after fermenting contains vinegar, B Vitamins, and other chemical compounds, I do NOT advocate drinking Kombucha tea before or after a BBL.  I know of no valid medical studies extolling the benefits of the tea.  I have read of adverse side effects such as stomach upset, infections, and allergic reactions 
Kenneth Hughes, MD, Board Certified Plastic SurgeonLos Angeles, CA