2-year-old baby after a cold nasal cavity swelling up pus runny nose may be related to infection, generally to drug treatment, while with daily care, specific analysis is as follows: 1. Symptomatic treatment: the baby after the cold nasal cavity swelling up pus nasal discharge, you can use saline spray nasal secretion, effective relief of the above symptoms. 2. anti-infection treatment: after the nasal cavity swollen runny nose is mostly caused by bacterial infection or viral infection secondary bacterial infection, etc., you can use the relevant antibiotics for treatment, such as cephalosporin, amoxicillin and so on. 3. daily care: during the cold, it is recommended to eat a light diet, as far as possible, do not go to the crowded place to play, to avoid aggravating the discomfort symptoms. The 2-year-old baby after the cold nasal swelling and pus nasal discharge, it is recommended to timely medical treatment, the use of medication in accordance with the doctor’s instructions.