Problem analysis: hello, according to the situation you described, it is a viral infection. From the perspective of traditional Chinese medicine, it is a cold.

Opinion and suggestion: I suggest you give your baby Banlangen Granules plus ribavirin granules and pediatric paracetamol. This group of medicine is used to treat runny nose caused by cold. For cough, I suggest you add azithromycin to Xiaoer Kechuanling Granule. If the baby is in a good mental state and has a good diet and sleep, you don't have to go to the hospital.