Always want to sneeze may be allergic rhinitis, may also be associated with colds, vasomotor rhinitis and other factors, patients are advised to go to the local hospital as soon as possible, as soon as possible to clarify the cause of the disease. 1. Allergic rhinitis: When allergic rhinitis inhales allergens such as pollen, dust mites, fungi, animal dander, etc., the nasal mucous membrane becomes edematous and the small blood vessels dilate, and the patient will have the symptoms of itchy nose and wanting to sneeze. Patients may also have symptoms such as nasal itching, nasal congestion and abnormal sense of smell. 2. Colds: patients with colds have increased nasal secretions, and the body will produce self-protection reflex activities to clean up the secretions in the nasal cavity by sneezing. Patients may also have fever, runny nose, sore throat and other symptoms. 3. Vasomotor rhinitis: Patients with vasomotor rhinitis will experience persistent sneezing under the effect of nervous system dysfunction and external stimuli. Patients also have symptoms such as itchy nose, runny nose and nasal congestion. There are other possibilities for constant wanting to sneeze. It is recommended that patients seek medical treatment as soon as possible and actively cooperate with the doctor to prevent delays in their condition.