The constant runny nose may be a manifestation of allergic rhinitis, and patients can improve their condition through general treatment, medication, surgery and so on. 1. General treatment: patients should avoid contact with allergens, for example, patients allergic to pollen should avoid going to the garden or field during the season of onset, patients allergic to dust mites should wear masks when sweeping the floor, and patients with more nasal discharge can use saline or special nasal rinsing solution to clean the nasal cavity. 2. Drug treatment: patients with allergic rhinitis can use second-generation antihistamines, such as cetirizine, loratadine, etc.; nasal decongestants, such as hydroxymetazoline, etc., for no more than 7 days; anticholinergics, such as ipratropium bromide, etc.; nasal glucocorticosteroids, such as budesonide, fluticasone propionate nasal spray, etc., to carry out the treatment. 3. Surgical treatment: For patients whose conservative treatment is not effective, surgical treatment can be carried out through selective neurectomy under the operation of doctors to cut off the parasympathetic nerves in the nose, so as to reduce the nasal secretion and improve the nasal runny state. It is recommended that patients strictly follow the doctor’s prescription of medication, actively cooperate with the doctor’s treatment, pay attention to nasal care, try to keep the nasal cavity moist, usually do not dig the nostrils, correct the bad habit of blowing the nose, and so on.