Why can i smell blood/metal in my nose when there is no bleeding, especially with acidic or strong smells? i got hit in the nose a few days ago but it stopped bleeding quickly and it's been a while so...?

Strange Smell: If the strange smell started after you were hit in the nose, it may be related to the blood that remained inside your nose or sinuses. If so, it should clear in a week or two. I do not advise washing it out, it might start to bleed. If the smell continues for more than two weeks, an ENT (nose) specialist could look inside. If you have other symptoms, go sooner.