Hope you feel better soon! I had a similar problem, cold a couple of weeks before op and then just one blocked nostril for over a week up until 2 days before, I took loads of vit c but took forever to go, didn’t even feel ill just the my nose! On the day I sounded bunged up but just said that was normal, woke up after op and was completely fine and having a really good recovery! They do ask if you have had a cough or cold recently… But… What’s recently? ?Wishing you all the best x