The baby nasal congestion, cough and phlegm if the respiratory tract infection can be taken Ambroxol oral solution, if the sinusitis can be taken through the orifices rhinitis particles, and so on. 1. respiratory tract infection: nasal congestion, cough, phlegm can be seen in colds, bronchitis, pneumonia and other diseases, can take anti-sensory particles to relieve nasal congestion, Ambroxol oral solution to relieve coughing, coughing phlegm, the presence of bacterial infections can be used to cefixime and other drugs anti-infection treatment. 2. Sinusitis: this disease will cause nasal congestion, nasal secretions backflow to the posterior wall of the pharynx will cause coughing, phlegm symptoms, can be used to promote the discharge of secretions through the nose particles, oral cetirizine hydrochloride drops anti-allergy, relief of nasal congestion and other treatments. Babies with nasal congestion, cough, phlegm, should consult a doctor in time, under the guidance of the doctor to clarify the cause of the disease, reasonable treatment. The above drugs should be used under the guidance of a doctor.