The enema is doing it's job of removing the candida fungus from your system. That is why your stools are always green or yellow instead of brown. As far as the red ring developing around your mouth. I don't know, maybe it is an allergic reaction to the enemas. I suggest drinking a lot of water and the more the enema cleanses your body the less funny colors you'll see in your stool. http://yeasthomemedicine.com/