Patients in the winter symptoms of runny nose, the specific reasons are as follows: 1, viral infection: may be due to wind and cold, in the winter suffered a respiratory viral infection, caused by colds, acute rhinitis condition, will cause the symptoms of running watery nose, often accompanied by nasal congestion, nasal itching, sneezing and other related symptoms. 2, local inflammation: part of the allergic rhinitis patients, may be in contact with the external air environment in the colder air, stimulate the nasal mucosa, easily triggered sneezing, sneezing and other symptoms. 3, the allergic rhinitis patients may be in contact with the external air environment in the colder air. Cold air, stimulate the nasal mucosa, easily triggered sneezing, runny nose and other symptoms. Some patients may be further triggered by inflammation of the sinuses, which often leads to the symptom of purulent nasal discharge. Therefore, patients need further detailed examination to distinguish the cause of the disease and take targeted treatment and improvement measures.