A runny nose can be caused by a cold, allergic rhinitis, vasomotor rhinitis, etc. and needs to be treated accordingly. There is no quick fix for a runny nose in all cases. 1. Colds: In the early stages of a cold, the runny nose is usually watery or mucous, and in the later stages of a cold, it may appear as pus. Usually you can choose medication, according to the cause of the disease, you can choose four seasons of antiviral, amoxicillin, cefprozil and so on for treatment. Pay attention to drink more boiled water, pay attention to rest, light diet, reduce the phenomenon of runny nose. 2. Allergic rhinitis: may be allergic to pollen, dust mites and other allergies caused by nasal allergic inflammation, the symptoms of which are manifested in the flow of watery nasal discharge, the amount of more, accompanied by sneezing, nasal itching. Second-generation antihistamines, such as cetirizine and loratadine, nasal spray hormones, such as fluticasone propionate nasal spray, can be chosen; anticholinergic drugs, such as 0.03% ipratropium bromide nasal spray can significantly reduce the watery nasal discharge. For some patients with poor drug treatment, surgical treatment can be chosen, such as neurectomy, such as pterygoid nerve severance. 3. Vasomotor rhinitis: mental tension, anxiety, sudden changes in environmental temperature, endocrine dysfunction, can cause excessive release of parasympathetic neurotransmitters, or cause non-specific release of histamine, vasodilatation, glandular secretion, symptoms of runny nose. Treatment is similar to allergic rhinitis, anxiety, depression patients, the need for psychotherapy. It is recommended that patients go to the hospital in a timely manner, after the diagnosis is clear treatment.