I'm assuming by green tea supp you mean some type of pill. I can't say that is a good route to go. I'd personally go with adding unsweetened brewed green tea to your daily routine.
"And for crying out loud. Don't go into the pain cave. I can't stress this enough. Your Totem Animal won't be in there to help you. You'll be on your own. The Pain Cave is for cowards.
Pain is your companion, don't go hide from it."