I've been reading a lot of posts about "smells" in the nose, but I haven't seen anything with my particular circumstance.
Three weeks ago, I had sinus surgery. I had thickening in the frontal and maxillary sinuses, and a couple of polyps removed. Recovery was going fine until yesterday when I began to have this smell in my nose. I have a relative who has chronic bad breath. The only way I know to describe the smell is to say that it smells like my aunt's bad breath. It can be very faint, but at times will come on very strong like opening a garbage can and getting an intense wave of bad smelling stuff. I'm also getting a lot more drainage down my throat and have actually had to blow my nose more these last two days than I did the first three weeks after surgery.
I have been using saline spray numerous times a day since my surgery, so I can't figure out why I would start having these problems now.