I've also read about it. I also have no interest in trying it out - if I were really sick I would try other natural means of cure, there are many, including herbs, juices, and the like; but anyway, despite the initial sense of revulsion, we might want to consider some of the other
things we put in to our mouths, masticate and swallow. Meat and dairy have things in them as a matter of course, that would horrify most folks, but most people either don't know, don't care, or just put up a wall of denial so they can go on consuming them. So when compared with blood and pus, which are both found in meat (and amounts of pus in milk), a bit of one's own urine maybe need not evoke such disgust.