Can eye drops be used for nasal mucus in newborns?

The child may be experiencing symptoms such as eye discharge, yellow nasal mucus, cough with phlegm, and fever up to 39 degrees at night, with normal temperature during the day. The cough started a few days ago, and the child had a high fever the day before, taking Meilin. However, the child had a fever again last night, with more eye discharge and yellowish mucus.