Infants blowing air conditioning nasal congestion may be related to cold stimulation, allergies, etc., you can strengthen the child’s care, cleaning air conditioning filters and other methods to alleviate the symptoms. 1. Cold stimulation: infants blowing air conditioning nasal congestion most of the air conditioning temperature is too low, the baby by the cold stimulation may appear nasal congestion symptoms, you can strengthen the baby’s care, the room air conditioning temperature should not be too low, the baby sleeps to pay attention to the warmth of the abdomen, to avoid being cold. 2. Allergy: If the filter inside the air conditioner is not cleaned in time, there may be a lot of dust, which may cause the child to develop dust allergy, causing nasal congestion, the air conditioner inside the mesh should be cleaned regularly to ensure environmental hygiene. It is recommended that if the baby blowing air conditioning nasal congestion, you can take the baby to the hospital, a clear diagnosis, under the guidance of the doctor for targeted treatment.