it has nothing to do with a gross factor parasites like these are called that for a reason and there was especially a reason it was used hundreds of years ago and only picked back up a couple of decades ago
you maybe comfortable attaching a living predatory parasite on your body but that is something i wont ever call medicine
Ok, then in certain circumstances your disgust response that directly contradicts the evidence may result in a lower chance of your survival. Your body, your call. I wholeheartedly support your right to refuse care. I, however, am rather fond of living and will use whatever medical intervention works best.