Baby nose blocked and she is crying

She is struggling to breathe a bit. I’m trying to put a nasal spray but she spend let me and cries when I try to or moves her head. Trying to use a frida baby too, but same thing. But she’s crying when she’s asleep, waking herself up, because she can’t breathe properly.

Help please. I tried putting nasal spray when she was asleep, but it woke her up and traumatised her. She cried for 10mins, with tears