Girls, who during pregnancy suffer from nasal congestion, now at 34 we…

Girls, who during pregnancy suffer from nasal congestion, now at 34 weeks, it was not like that before, got sick last week of ORVI and the runny nose remained already 7 days, I'm dripping Nazivin, I'm afraid already used to without him, I can't sleep, I can't breathe. How to get rid of it? How do you cope? Or is drip drops harmful to the baby?