I've been taking milk thistle and dandelion and artichoke leaf under guidance from my midwife and the herbalist who works with the practice. It cleared up a horrible case of cystic pregnancy acne for me, and they also successfully used it to treat another client's rash. I Googled my brains out before taking it, and basically what I found was that there are no studies proving it is safe, but none really proving it is unsafe. It made the condition worse for a few days before it made it better, as stuff really does seem to purge through the skin. Good luck!