A yellow runny nose in a baby with a cold is not necessarily a sign that the cold is getting better. If the amount of nasal discharge is decreasing and the child’s mental condition is improving, it means that the cold is getting better. If the amount of nasal discharge is gradually increasing and the child’s mental condition is not improving, it is a sign that the cold is getting worse, which means that there is a bacterial infection. It is necessary to give the baby antibiotics for treatment, the more effective antibiotics is cephalosporin antibiotics, you can give the child is pediatric cefixime granules or pediatric cefadroxil granules. If the effect is not very good after taking antibiotics, you need to take your child to the hospital for a specific examination and infusion treatment, infusion treatment effect is better than oral medication.