"Kawakawa is a traditional medicinal plant of the Māori".

I was told it is a cleanser, particularly a blood cleanser. I do not claim to be a healer or that you take my advice but many people use it regularly, sick or not, when they want to "detox". I was taught to gather strictly the bug bitten leaves (this signifies that it is safe to eat and free of other toxins) and make a tea from a few leaves, I have done this many times before. You should find it quite easily growing spray free near Auckland's west coast beaches ;)

I just found this page also with info/videos (http://www.rongoa.com/kawakawa.html) and they are far less thorough with leaf selection, proving the plant is quite harmless. Hope this helps :)