There is no cold, but there will be a runny nose. At this time, you should pay attention to keep warm to avoid getting cold again, wear a mask in a cold environment, and you can drink more warm boiled water and warm juice. This symptom is mainly seen in the cold and hot air stimulation, resulting in physiological nasal mucosa secretion exudation, but also seen in chronic rhinitis, sinusitis and allergic rhinitis caused by the symptoms. You can use budesonide spray to spray the nasal mucosa, and you can also take Vicodin tablets, sense of Kang tablets and other symptomatic treatment of drugs. Nasal drops containing pseudoephedrine can be used to relieve symptoms.