Nasty smell and taste day after septoplasty. Is it normal?

I had septoplasty on 9/12/16 and the day after that and to present time whenever I'm able to breathe just a little through my splints I get this nauseating smell. Even when I I get the taste and smell. I ruled out infection because I got it the day after surgery. Whenever I get this is tend to cough put blood. When I'm able to breathe with the splints blood goes down my throat. Is that the cause of the horrendous smell and taste? Even Chicken Mcnuggets tasted awful! Also, I keep rinisng.

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