In Harry Potter and the Chamber of Secrets, I read:
Nose still stinging where it had hit the hearth, Harry made his way swiftly and silently toward the door, but [...]
I think the sentence is grammatically wrong because I guess it is the nose, so the sentence above should be "Nose still stinging which had hit the hearth [...]."
"Big deal," said Ron rubbing his foot where the photographer had stepped on it.
I think it means "his foot," and the sentence above should be "[...] his foot which the photographer had stepped on."
I will appreciate if you tell me whether I am right or wrong and, more importantly, 'why'.