Mine was like it for couple weeks, I found when I put him in bathroom whilst I had long hot shower seemed to help
Maybe try getting your baby a nebuliser, we got a wire free one from amazon and pop a saline solution 0.9% in it, and it's started to ease. I also give the saline solution drops into her nose 2 times a day as our home tends to get dry x
Yes my little girl has had it for about 5 weeks, I did take her to the doctors last week and they said she was fine just congested. It has got better but still not great