Friend of mine is undergoing cancer treatment and has been a fan of Chinese herbal medicine for years but has gone strictly conventional (operation etc). The specialist says that they are actually doing a big test of Chinese herbs at the John Hunter Hospital and find that some of them have "encouraging" properties. After all nearly all our most powerful drugs came originally from plants ... aspirin from willow bark, penicillin from mould, opioids from poppies, birth control pills from some plant out of the Amazon, beer from barley. I'd guess a lot of the Chinese concoctions could be helpful, but a lot of them superstition.