Patients with runny nose in the case of cold may be caused by the following factors: 1. Patients with runny nose is a common symptom of cold, because the viruses or bacteria that cause cold invade the nasal cavity, resulting in inflammatory changes in the nasal mucosa, the nasal mucosa will secrete a lot of secretions, so the symptoms of runny nose will appear. 2. Patients who usually have chronic rhinitis or sinusitis and other diseases, when they have a cold will The acute attack of rhinitis and sinusitis will be triggered, so the symptoms of runny nose will appear, and the patient will also have different degrees of nasal congestion and headache. If you have a cold or a runny nose, you should take rhinitis pellets or rhinitis tablets to relieve the symptoms, or you can use furosemide nasal drops for treatment.