The clinical symptom of incessant sneezing is mainly considered to be caused by allergic rhinitis. Allergic rhinitis is easily induced by cold or flu, or by contact with certain allergens such as pollen, dust, and mites in life. In addition to sneezing, some patients may also suffer from nasal congestion, runny nose, headache and other clinical symptoms. In the treatment of allergic rhinitis, at present, the main symptomatic treatment and prevention, it is difficult to carry out a radical cure. When you go out, try to wear a mask, the room should often open the window ventilation, to avoid contact with allergens, in addition to the short term can also be taken orally anti-allergy drugs, such as loratadine, cetirizine to relieve the symptoms, the nasal cavity can also be used locally to use glucocorticosteroid nasal spray, such as budesonide can also alleviate the symptoms. If the standardized drug treatment has no effect, the condition can also take desensitization therapy, but the treatment cycle is generally longer, at least about two years.