That's one of the classic challenges of repertorizing, unfortunately. Where
Kent decided something is located appears to have endured, whether it makes
sense or not. For instance, I don't consider the buttocks part of the
legs -- I'm more inclined to think that when they hurt, I have a
"backache." But in the Repertory, the "nates" are with the "extremities."
Go figure. Same kind of thing happens with the neck -- ever tried to find
neck tension or pain?? Then there's the face and the mouth. I would look
(and have done so, unfortunately) under "mouth" for lips. But, guess
again -- there they are with "face." Part of the lore of homeopathy. Oh,
well.

Rosemary