The baby blowing air conditioning nose stuffy, consider allergic rhinitis may, can use physiological seawater spray to clean the nasal cavity to improve nasal congestion. Blowing air conditioning is easy to air conditioning residual dust, mites exposed to the air, when the baby comes into contact with these allergic substances is easy to induce rhinitis, triggering the flow of watery nose, sneezing and other symptoms. After the allergy, the nasal cavity will have a large amount of nasal blockage triggered by nasal congestion and other symptoms, you can use physiological seawater spray on the nasal cavity for rinsing, remove nasal secretions, can improve nasal congestion and other symptoms. Older babies can be under the guidance of the doctor to be cetirizine anti-allergy, mometasone furoate nasal spray local anti-inflammatory and other symptomatic supportive treatment. During the treatment period should pay attention to avoid the phenomenon of cold, if gradually appear cough, fever and other symptoms, need to rule out the existence of respiratory tract infection phenomenon, can consult a doctor in a timely manner, a clear diagnosis, if necessary, follow the doctor’s instructions to give cefaclor and other antibiotics anti-infective treatment. The baby nasal congestion, it is recommended that otolaryngology consultation, clear cause, follow the doctor’s instructions for treatment.