Hello moms! My child has a stuffy nose at night and barely breathes i…

Hello moms! My child has a stuffy nose at night and barely breathes in the morning (baby is 2 months old), and only coughs rarely, not too much. (Aqua Maris and Nazivin are useless, it doesn't help us at all). Can I give Kzyl May? We were prescribed Kzyl May by our pediatrician for 6 drops twice a day. He says there's a bit of red throat. And Viferon was prescribed. How did you treat it? Share your experience, who had this and how did they treat it?