drinking question

is there any tea you can drink before an after surgery?

I drink decaf.  I love peppermint tea and sleepy time tea

before or after surgery?

Both as long as its decaf 

I drink caffeine free herbal tea.  I drank it right up to surgery (clear liquid) and soon after.  Counts as water and sometimes after surgery warmer temps go down better.  My surgeon's plan says no caffeine for 3 months, but now that I've lived through withdraw I may just stay off it forever.