When the symptoms of cold and nasal congestion appear in infants and toddlers of 50 days, they can choose the appropriate treatment according to the severity of the symptoms, as follows: 1, if the symptoms of cold and nasal congestion in infants and toddlers are relatively mild, it is generally not recommended to take drugs to treat them. Infants absorb vitamins and increase immunity to speed up the improvement of the condition; 2. The correct way is to stop feeding for a while, let the baby take a few breaths and rest before feeding again; 4. If the child is accompanied by fever, you should take the child to the doctor for treatment.