Babies who catch cold, sneeze and runny nose are considered to have a viral cold. If clear snot is more frequent, accompanied by severe nasal congestion, which can affect baby’s feeding, sleeping and breathing, you can take pediatric cold medicine orally for 3-5 days. Commonly used are pediatric black beetle clearing granules, pediatric cold granules, etc. At the same time, with the use of physiological sea saline spray nasal cavity spray, rinse nasal cavity can relieve nasal congestion. If the clear nasal discharge turns into yellow nasal discharge, it is considered to be combined with bacterial infection and additional antibiotics are needed. Cephalosporin and penicillin are preferred, in the absence of drug allergy. If the baby presents with fever and a particularly yellow nose, accompanied by poor mental status, such as irritability and crying, it is recommended to visit the pediatric internal medicine and ENT departments for an interview. Routine blood tests and, if necessary, a CT of the head are needed to rule out acute sinusitis. If the white blood cells exceed 10,000, it is recommended to treat better with infusion.