A runny nose may be related to cold air irritation, chronic rhinitis, influenza, nasal polyps, etc. Patients can find relief through general treatment, medication, and surgery. There is no fastest treatment for runny nose. 1. Cold air stimulation: when the patient is in a cold environment, inhale cold air, stimulate the nasal mucosa, may cause runny nose, the patient should be away from the cold environment, pay attention to warmth, go out, you can choose to wear a mask to avoid cold air stimulation and so on. 2. Chronic rhinitis: patients with chronic rhinitis can use vasoconstrictor nasal drops under the guidance of a doctor, such as furosemide nasal drops, hydroxymethazoline, seroquel nasal drops, etc.; corticosteroid nasal sprays, such as budesonide, fluticasone propionate nasal spray, etc. for treatment. Patients can also use a special nasal rinse to rinse the nasal cavity and improve nasal symptoms. 3. Influenza: Influenza patients need to keep the room ventilated, pay attention to rest, drink more water, patients can use antiviral drugs under the guidance of the doctor, such as oseltamivir, ribavirin, etc. for treatment. 4. Nasal polyps: patients with nasal polyps can use glucocorticosteroids, such as prednisone tablets; antibiotics, such as clarithromycin, amoxicillin and other treatments under the guidance of a doctor. For patients with more serious nasal polyps, nasal polyps can be surgically removed to improve their condition. In addition, allergic rhinitis, chronic sinusitis, sinus cysts and other diseases may also cause the symptoms of runny nose, it is recommended that patients seek medical examination in a timely manner, to clarify the condition, and then actively under the guidance of the doctor to use medication and treatment.