Strange, I've never heard anyone say about this before and I dont know about the leg to the face theory, BUT since I started breaking out 5 years ago, I kept telling the derm that I had a "pain" on the right side of my chin, which was wear the most of the pimples (oil filled) were forming. Well, he and the dentist and the dental surgeon, and the ear/nose/throat guy and the neurologist all said it couldn't be connected. All I know is, I went on the accutane and the pain went away, I went off the accutane and in one week the pain and the pimples were back . I'm not sure if I have some nerve damage or what, but the breakouts in that area can be painful. The higher the accutane dose, the less the pain and the less breakouts. Derm can't figure it out though and neither can I. If it is a neuralgia , the meds they give you CAUSE acne, so I guess I won't travel down that road either!!