A runny nose is a major symptom of a cold. Because colds are caused by viral infections, the onset of the disease is relatively rapid. The main symptoms are nasal symptoms, such as sneezing, nasal congestion and clear watery nose, which will thicken after 2-3 days and may be accompanied by sore throat, headache, lacrimation, breathlessness, coughing and other symptoms, and in severe cases, fever. However, the cold is a self-limiting disease, and it can usually be cured after 5-7 days. In case of complications, the illness may be prolonged. If the runny nose is serious, you can drink a small amount of antiviral medication. The main medicines for cold and flu are 999 cold and flu spirit, Shuanghuanglian Oral Liquid, Blue Scutellaria Oral Liquid, Anti-viral Oral Liquid and so on. If the clear water-like nasal discharge is particularly heavy, you can use a nasal washer externally to rinse the nasal cavity to reduce the discharge of nasal discharge. The patient’s disease will be significantly reduced, thus shortening the course of the disease.